Making the Common, Uncommon Close-Up and Macro Photography and Macro Photograp… · • Extreme...
Transcript of Making the Common, Uncommon Close-Up and Macro Photography and Macro Photograp… · • Extreme...
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Close-Up and Macro Photography
Charlie Ginsburgh
Fotoclave 2019 E-mail: [email protected]
Images: charlie-g.smugmug.com
Making the Common, Uncommon
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Macro Photography
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One definition ….
Macro Photography is extreme close-up photography, usually of very small subjects, where the subject is generally smaller than the camera sensor
(which is roughly the size of a postage stamp)
However since sensor sizes now differ (as do the size of postage stamps) this definition may be a bit out dated
Regardless of the definition, Macro Photography generally refers to taking magnified images of small subjects
• Insects (bugs)
• Flowers (whole and parts)
• Small items and/or Jewelry
• The everyday and the exotic
(ice crystals, sand, beads, skin, water drops, salt gains, spices …)
Macro Photography is the field in photography
relating to very small subjects
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Close-Up Photography
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My definition ….
Close-Up Photography is the photography small subjects, who are bigger than the camera's sensor (bigger than a postage stamp), but smaller than
a loaf of bread (my upper limit definition)
Why distinguish between the two ?
The differences between Close-up and Macro photography
will come into play a bit later
• Whole flowers or leaves
• Whole feathers
• Small statue or figurine
• Larger jewelry
• Items larger than 2-inches in any one dimension
Close-Up Photography is the field in photography
relating to smallish subjects.
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Want to see several examples of Close-up and Macro Photography ?
Go to the fotoclave gallery to see several examples the
types of subjects I employ in my macro photography
https://fotoclavegallery.slickpic.com/gallery
Example of Close-up and Macro Photography
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Normally I show several slides to ease into this topic, but here let‟s just …
“Cut to the Chase”
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Question:
What is the single issue that Macro Photographers
struggle with the most ?
Answer:
Insufficient Depth of Field
Generally speaking…
the greater the magnification,
the less the apparent Depth of Field you will obtain (and this can be an issue)
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• When we take pictures of highly magnified subjects (as in macro photography), this effect can be problematic
• We can get very detained views, but of very limited areas
• Aperture changes have little impact (don’t you just hate that?)
Depth of Field - Limitations at High Magnification
Picture from the file “Focus stacking
Tachinid fly.jpg” from Wikipedia, the
free encyclopedia
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So …
with “Close-up” shots
you can decrease the aperture to increase the depth of field
(just like we do in our normal photography)
with “Macro” shots
decreasing the aperture has little or no impact upon the depth of field
We need to use other techniques to improve the apparent depth of field
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What do you need to take a Close-up or Macro shot (Not that much actually)
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• A Camera (OK, so I‟m a master of the intuitively obvious)
Any camera which will give you the appropriate exposure and magnification will do
• A way to obtain a magnified image (zoom lens, macro lens, extension tube …)
• A tripod (in most cases you need to stabilize the camera to take a sharp image)
There are exceptions such as hand held macro shots with a flash
• At times a flash is helpful
• In some (but not all) cases, specialized software (which we will also discuss in a bit)
And most importantly
Imagination, Vision and Patience
You may be capturing everyday scenes in an uncommon way,
so you need to practice seeing these scenes in uncommon ways
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A Kenko Extension Tube Set
(Set of 3 extension tubes at 12, 20
and 36 mm for Canon mount)
B Canon 500D “Close-Up” Lens
(77 mm)
C Canon EF 100 mm f/2.8 L USM
Macro Lens
D Tamron 180 mm f/3.5 SP Di
Macro Lens
Types of equipment that yields greater magnification
D
C
B
A
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The extension tube allows a lens to focus closer than it does natively
This is accomplished by moving the lens away from the camera body's sensor plane
by placing the tube between the camera body and the lens The further the lens is from the sensor, the closer the focusing distance, the greater the magnification
Extension Tubes
The Close-Up Lens
The Close-Up lens allows a lens to focus closer than it does natively
These lenses increase the optical power of the native lens, decreasing the
minimum focusing distance, and allowing the camera to get closer to the subject A close-up lens is a high quality magnifying glass positioned in front of your existing lens
Least Expensive Option ($ 60 – 100)
One set of tubes works across many lenses
Extension tubes give more magnification with shorter focal lengths
At times difficult to find good lens – tube pair with a reasonable or workable depth of field
May push a lens to work at a distance it is not optimized for
Next Least Expensive Option ($ 100 – 150)
One lens fits an established lens diameter (i.e. 56 mm, 77 mm)
Close-up lenses give more magnification at longer focal lengths
Hard to obtain a reasonable or workable depth of field
May push a lens to work at a distance it is not optimized for
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The Macro Lens (I believe that this is the right tool for the job)
A macro lens allows you to you capture images where the life size of your subject is the size or smaller than your camera sensor without the need for any additional accessories
(Referred as 1:1 Reproduction, Magnification, Macro magnification and/or 1:1 ratio)
• They are designed to provide clean clear magnification
• They allow you to move the lens much closer to your subject
• These lenses are optimized to provide the sharpest, distortion free images at these magnifications and focusing distances
• Canon designates these as “Macro” lenses while Nikon's designation is “Micro-NIKKOR” (go figure)
• Macro Lenses are also good high quality general purpose prime lenses
– They take wonderful images when used as a normal lens
– This is why I generally (but not always) get a macro lens with the autofocus feature (even though I may not use autofocus in my macro photography)
– A 100 mm lens can also be a great portrait lens
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The Macro Lens (I believe that this is the right tool for the job)
Note:
• The use of the term MACRO is a bit soft and is often used to refer to any magnification between 1:1 and 1:4 (which I was informed was the industry standard for a “Macro” claim)
• Some telephoto lenses are labeled as MACRO but may only yield a 1:4 magnification
• I have yet to find a true 1:1 Macro Telephoto lens (they are all prime lenses)
• These may not be the true 1:1 Macro Lens you may have intended to buy
• Research the product !!!
This is not a true 1:1 Macro lens This is true Macro lens
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Macro lenses of different focal lengths find different uses:
Macro Lens (I believe that this is the right tool for the job)
• 60 – 105 mm – insects, flowers, and small objects from a comfortable distance
(Cost: $ 600 - 800 range for decent quality lens)
• 150 – 200 mm – insects and other small animals where additional working distance is required or
scenarios where greater magnification is desired
(Cost: $ 750 - 1,600 range for decent quality lens)
• 30 – 50 mm – product photography, small objects that can be approached closely without
causing undesirable influence, and scenes requiring natural background perspective
(Cost: $ 300 – 600 range for decent quality lens)
• Extreme Macro (such as the Canon MP-E 65 mm f/2.8 1-5x Macro) Note: This is a very specialized lens
(Manual focus lens to 5:1, Cost: $1,045)
A Note Regarding Used Macro Lenses
Macro lens are some of the most often “returned” or ”re-sold” lenses
so you can often get used Macro lenses that are “like new” or barely used at all
However, I suggest that you use a reputable used lens dealer (KEH, B&H, Lens manufacturer)
E-bay users: Buyer Beware
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34 % magnification with
12 mm Extension Tube
160 % magnification with
56 mm Extension Tube
54 % magnification with
20 mm Extension Tube
100 % magnification with
36 mm Extension Tube
Normal image
with 35 mm lens
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<= 55 mm lens with
“Close-Up” Lens
55 mm lens =>
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16 100 mm Macro lens
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17 180 mm Macro lens
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18 Canon MP-E 65 mm f/2.8 1-5x Macro lens at 2X
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Automatic “Macro” Settings
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With many cameras when you select a “macro” setting, the camera commands the lens aperture to close to its minimum, thereby expanding the depth of field
Dependent upon the camera it may also reduce the minimum focus distance associated with the lens (not sure how this is done)
This neither gets around any limitations of the lens (optics
and/or design), nor in my experience, does it generally improve the depth-of–field
sufficiently to be really useful
If it were that easy we would not find “Macro” Lenses so useful
(and we do)
Some cameras have a “Macro” setting.
Will this do the job ?
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• Lights the Subject and Reduces Shadows
• Can freeze a moving subject (critical with hand held close-up shots)
• Allows shorter shutter speeds (important if you are hand holding the camera or if the subject may not be still for long)
• Introduces more light allowing lower apertures (resulting in greater depth of field for your close-up images)
• Ring Flash or Ring Light (flash attachments that fit on the end of your lens) have been developed specifically to produce even, diffused lighting directly upon your close subjects although modified (diffused) Speedlights also will work
However …
• If you are using a tripod (and nothing is moving) then there should be no issue with using longer shutter speeds
(It‟s not uncommon for me to use 2-4 sec exposures with natural light)
Do you need a Flash ?
The more the magnification, the less light reaches the sensor Also, with a minimal focusing distance, some of the available light can at times be blocked
So at times a Flash can be helpful
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If one mounts a lens in reverse on the camera, this results in a magnified image
Reversing Lenses in Macro Photography (The ultimate Jury-rig)
50 mm Lens reversed on Canon Body
50 mm Lens reversed on a 85 mm lens on Canon Body
You need ..
• A simple lens (i.e. a 50 mm prime lens)
• A reversing ring with allows the filter threads of the lens to attach to the camera mount (cheap $ 2-5)
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• The lens loses its electronic communication with the camera
• The auto focus will not work • You may not be able to change the aperture of the lens
• Lens will not focus when you reverse mount it
You have to physically move yourself to focus the subject
• The depth of field becomes extremely shallow making getting a focused area difficult (and frustrating)
• You may need to get very close to your subject
• Hand-holding the lens is very difficult. A tripod may be required
• Best for extreme macro shots (not close-ups and/or flowers)
• The sensor end of the lens is exposed (never a good thing)
The reversed lens set-ups can be difficult to work with
If you are just starting out in Macro Photography I would not suggest this set-up.
One‟s chances for any first time success here can be quite low
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Here is my recommendation:
Goal – To explore Macro Photography and to achieve the greatest probability of success right out of the gate
• Start with a
• A decent camera (Macro photography is less about the camera and more about the lens)
• A Macro lens (in the 90-105 mm range)
• A Tripod (yes you may need to dust yours off and relearn how to use it)
• A Speedlight if you require a flash (diffused to reduce glare and/or hotspots)
• Nothing else (no special software, focus rail, special lighting …)
Just Getting Started ?
I generally don‟t recommend buying equipment to start out with something new, however here I do recommend starting out with a Macro Lens
rather than some of the more “cheaper” options.
Your probability of success right out of the gate is much higher with a Macro Lens than trying the “cheaper” options and wrestling with the
frustrating limitations these options often present
You can rent a lens or buy a used macro lens at first, but it may take a bit of time to get used to the lens and it‟s application in this genre of Photography
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Earlier we noted that obtaining sufficient “Depth of Field” can be problematic
What if the changing of available factors does not lead to sufficient increases in the „Depth of Field' and enough of the subject in focus…
What can we do ?
What if we …
• Take several pictures such that different areas of the scene will be in focus
• Combine them is such a way that we only include the areas that are in focus, in the final image
Cool !!!!!
( uhhh… How do I do that ? )
This process is called “Focus Stacking”
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Focus Stacking
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“Focus Stacking” is a technique in which
we can combine several photographs in such a way
to increase the apparent “depth-of-field”
ok …
sounds nice …
but how do I do this ?
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To do this we …
• Take several pictures such that different areas of the scene will be in focus (2 - 100s individual shots) – “focus slices”
• Combine all of the images into a “stack” of several images (one file containing several layers, where each layer is an individual “focus slice”)
• Scale and Align the image in each layer such that both the focused and unfocused areas are in perfect alignment
• Identify the areas from each layer that are in focus
• Mask out the areas in each layer that are not in focus
• Combine the unmasked “in-focus” areas into a single image
This is a lot of work, and nearly prohibitive if you were doing this by hand with many shots (not too hard with only 2-3 shots)
Luckily there are software packages that will do most of this for us
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“Focus Stacking” Demo
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Application Contact Cost
Zerene Stacker
Zerene Systems (www.zerenesystems.com)
With Editing Capabilities Personal Edition - $ 89.00, Student Edition - $ 39.00
Helicon Focus
Heliconsoft (www.heliconsoft.com)
Pro Version has similar editing capabilities to Zerene Stacker
$ 55 per year,
$ 200 Unlimited License
Photoshop CC (CS 4 or greater)
Elements (V 15 or greater)
Adobe (www.adobe.com) Photoshop CC Subscription: $ 10 / month
Photoshop Elements: $ 70 (one time)
Photoshop Elements version 15 and greater has a Focus Stacking Scrip Photoshop Lightroom does not have a stacking capability.
CombineZ-Pyramid (Combine ZP)
http://www.windows8downloads.com/win8 -combinezm-gigpordx/download.html
Free (I have not tried this software)
GIMP Free open source photoediting software
(www.gimp.org) Free
(I have not tried this software)
Focus Stacking Software
Each has it‟s benefits – Try them to see which fits you best
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We can adjust the “plane of focus” by either …
• Keeping the camera / lens stationary and adjusting the focus of the lens
• Keeping the focus fixed, and moving the camera
Both methods will result in images that are slightly bigger or smaller as you adjust the “plane of focus”. Luckily the stacking software adjusts for this.
Taking Focus Slices
Moving the camera in very small but controlled steps …
• Focus rail (manually operated and relatively inexpensive) • Manfrotto 454 Micrometric Positioning Sliding Plate ($ 90)
• Motorized Focus rail (programmable and motor driven, but somewhat expensive) • Cognisys StackShot - Automated Macro Rail ($ 600 - 800)
My Recommendation…
• Start by manually adjusting the lens focus while camera / lens is on a tripod
• If you really are having fun, move to a manually operated focus rail
• If you are having Way Too Much Fun, such as using extreme magnification and your depth of field is very small (i.e. in the 0.25 mm or ¼ of a millimeter range) you might consider an automated system
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Focus Rails
Manually operated focus rail
Manfrotto 454 Micrometric Positioning Sliding Plate
Motor driven focus rail
Cognisys StackShot - Automated Macro Rail
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Newer Camera Systems
• Some are beginning to incorporate features which will adjust the focus in slight predetermined steps to generate focus slices
• “Focus Shifting” in the Nikon D850
• “Focus Bracketing” in the Canon EOS-RP
• “Focus Bracketing” in the Fujifilm X-T1, X-T2, X-T3 and X-T30
• Limited 8 shot Focus Stacking with Olympus OM-D E-M1 (MK II) and E-M5 (MK II)
• Requires a Autofocus Lens
• May not perform stacking “in-camera” (Nikon D850, Canon EOS-RP and Fujifilm X-Ts do not)
Alternate Methods to Generate Focus Slices
There are also attachments which will also automatically adjust the focus For Example …
• The Helicon FB Tube is an extension tube with integrated electronic microcontroller designed to enable automated focus bracketing in single or continuous shooting modes (around $ 200)
• CamRanger 2 or CamRanger mini. This unit works from your i-pad or cell phone to make small focus adjustments in your camera ($ 200 – 400)
I prefer systems where I can see each focus slice as I set it up and capture it.
That way I can ensure that all of the most critical elements in the image are in focus
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What you gain and what you lose with a stacked image
(There is no “free lunch”)
• Lots of detail (foreground and background)
• Perhaps too much detail (foreground and background)
• Flat looking image (can lose a feeling of depth)
• Lots of other stuff you didn‟t see and/or may not want • Dust • Hairs • Specular highlights • Other unidentified „stuff‟
It is very common to follow-up a Stacking session with an extensive Editing session
• Editing out the stuff you didn‟t see (or want)
• Simplification (removal of background or distracting elements)
• Building depth back into an image
• Blurring and / or Darkening the background
• Partial Darkening of selected elements (the further from the front, the darker)
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Stacking can pick up a lot of “other stuff”
This is not an Atypical Stacked Image
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Stacking can pick up a lot of “other stuff”
This is not an Atypical Stacked Image
Stacked Image
Edited Image
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What you gain and what you lose with a stacked image
(The “Other Stuff”)
Stacked Image Edited Image
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What you gain and what you lose with a stacked image
(Dealing with the “weirdness”)
Stacked Image Edited Image
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What you gain and what you lose with a stacked image
(Simplification or the removal of background and/or distracting elements)
Stacked Image
Edited Image
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What you gain and what you lose with a stacked image
(Shading to add depth and dimension to an image)
Stacked Image
Edited Image
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What you gain and what you lose with a stacked image
(Shading to add depth and dimension to an image)
Stacked Image
Edited Image
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What you gain and what you lose with a stacked image
(Shading to add depth and dimension to an image)
Stacked Image
Edited Image
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Not Everything Needs To Be In Focus
Here the Artist’s Vision is Critical
• Selective or partial focus (artistic concept and design)
• Adding back some “less sharp” areas to aid in generating a „sense‟ of depth
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Thank You
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Examples
Procedures
Focus Stacking
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Example 1
• Review several pictures each at a different points of focus (focus slices)
• Open raw files and perform preliminary edits
• Open edited files and Stack in Photoshop
• Flatten stacked image and save file
Example 2
• Review several pictures each at different points of focus (focus slices)
• Open raw files and perform preliminary edits
• Save edited files as TIFF files
• Open TIFF files in Zerene Stacker
• Stack using P Max and D Map methods
• Compare the output from both methods, edit and save as appropriate
• Save final file as a TIFF file
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I capture my images as both Raw + JPG files
I open my Raw files and perform some preliminary edits in the Raw File editor. When finished, these raw files are opened in Photoshop
Once all files have opened in Photoshop,
• Go To => File => Automate => Photomerge 1. Select the “Auto” Layout option
2. Deselect the “Blend Images Together” option
3. Select “Add open Files” option and select “OK”
4. When the Photomerge alignment process is done proceed to the next step
• Select all open layers (select the top layer, hold the Shift key down, and select the last layer)
• With all layers selected, 1. Go to => Edit => Auto-Blend Layers => Stack Images
2. Select the “Seamless Tones and Color” Option and Press OK
3. When this process is completed, the final focus-stacked image should be displayed
• If acceptable, merge all visible layers and save the resulting file as a PSD file for further editing within Photoshop
• Close all other files without saving
Using Photoshop for Focus Stacking
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• Several pictures are taken at a different focus points either in a studio
setting or in the field (I use a tripod and my aperture is normally set at f8)
I capture my images as both Raw + JPG files
• The JPG images are reviewed to ensure that the entire subject has been captured “in focus”
• All Raw Files are opened in Adobe Raw as a 8 bit files, and they are edited for clarity, white balance, color balance, contrast, sharpness …, and are saved as TIFF files
This is a preliminary pass at the editing, and is not final
• The TIFF files are opened in Zerene Stacker, stacked using both the P
Max and D Map methods, reviewed for processing abnormalities, edited as
appropriate and the final image is saved as a TIFF file
• The final Stacked TIFF file is opened in Photoshop (CC) and final edits are
performed, saving the final file as a PSD and JPG file (before printing)
Using Zerene Stacker for Focus Stacking
Since there are a lot of files and file types involved here,
some type of file organization system is essential