Chickadee

johnrmoyer — Wed, 29 Jan 2025 15:11:22 GMT

I often see comments that it is better to crop than use an extender. I disagree and think that the Canon extenders together with the digital lens optimizer in Canon DPP software work very well. I hope this example will be helpful to some.

The advantage from using the extender is more pixels on the bird.

The disadvantages from using the extender include lower contrast at edges in the image and a smaller aperture which requires higher ISO.

I use the Canon DPP digital lens optimizer to remove small aperture diffraction blur. The capture sharpening (Richardson/Lucy deconvolution) in rawtherapee free software also works well. The DPRAW tool or the "clarity" setting in DPP can correct some of the loss of contrast at edges. I use exiftool free software to add IPTC metadata, but for some cameras it can be added using the Canon EOS Utility software.

I have published this photo at https://www.rsok.com/~jrm/2025Jan15_birds_and_cats/2024dec22_chickadee_IMG_2390c.html , https://1-john-moyer.pixels.com/featured/chickadee-2390-john-moyer.html , https://licensing.pixels.com/featured/chickadee-2390-john-moyer.html , https://okla.social/@johnmoyer/113912003640868920 , https://bsky.app/profile/jrm.rsok.com/post/3lgv525qvbk2t , https://www.facebook.com/JohnMoyerPhotography/posts/pfbid0DLcPHMLYx2rC3p4je3zTNNo4wV49G3rsbwCZQuBQeTqMDTy51TrSUj6kWaygi5uAl?__cft__[0]=AZVpdf2_GeSRHd2ETpis8jqbjcFYj2AM1uE8Rvpmm8iqhGctgyZgqQpXb5NFgU0kqcv5-OaUomgl4OopUfjfiCwk1we4g-R5ymcGFCL6-_rTDgkctVO9jyLwgt8rL7lhwoh9Fp33UorIwruhpkDZF7zQsm31hUtQvY0DouSF1kb2ZLOanoLrkAsRAX5Fn-1UgqI&__tn__=%2CO%2CP-R , and archived at https://web.archive.org/web/20250115185048/https://www.rsok.com/~jrm/2025Jan15_birds_and_cats/2024dec22_chickadee_IMG_2390c.html

Carolina Chickadee (Poecile carolinensis) on oak twigs Norman, Oklahoma, United States on December 22, 2024 ; EOS R5 ; EF100-400mm f/4.5-5.6L IS II USM +2x III ; 800 mm ; 1/500 second ; F/13 ; distance from camera to bird about 8.5 meters

I used Canon DPP to process the CR3 raw file. I save the edits as a recipe in a dr4 file. Exiftool can read the dr4 file so that I have a record of the edits. I have placed camera settings and all edits in the table below. I used graphicsmagick free software to place a frame around the image with a caption in the frame.

ExifTool Version Number	13.09
File Name	IMG_2390c.JPG
Camera Model Name	Canon EOS R5
Software	Digital Photo Professional
Modify Date	2024:12:22 14:15:29
Exposure Time	1/500
F Number	13.0
ISO	500
Date/Time Original	2024:12:22 14:15:29
Offset Time Original	-06:00
Continuous Drive	Continuous, Low
Focus Mode	AI Servo AF
Record Mode	CR3+JPEG
Metering Mode	Evaluative
Focus Continuous	Single
Image Stabilization	On (2)
Camera Temperature	29 C
Measured EV	14.12
Measured EV 2	30
Canon Firmware Version	Firmware Version 2.1.0
Shutter Count	22497
Valid AF Points	1
Image Unique ID	52a5703634444a4ba1b91d62c962c613
Time Zone	-06:00
Time Zone City	Chicago
Daylight Savings	Off
Battery Type	LP-E6NH
Focus Distance Upper	9.07 m
Focus Distance Lower	7.89 m
Shutter Mode	Electronic First Curtain
Add IPTC Information	Enable
Measured RGGB	524 1024 1024 623
WB RGGB Levels As Shot	1964 1024 1024 1820
Color Temp As Shot	5357
Per Channel Black Level	2047 2047 2048 2047
Normal White Level	13535
Specular White Level	14888
Linearity Upper Margin	12735
Picture Style User Def	Standard; Standard; Standard
Picture Style PC	None; Standard; None
Vignetting Corr Version	96
Peripheral Lighting Setting	Off
Chromatic Aberration Setting	On
Distortion Correction Setting	Off
Digital Lens Optimizer Setting	On
Peripheral Illumination Corr	On
Auto Lighting Optimizer	Off
Highlight Tone Priority	Off
Long Exposure Noise Reduction	Off
High ISO Noise Reduction	Off
Digital Lens Optimizer	Standard
AF Config Tool	Case 1
AF Tracking Sensitivity	0
AF Accel/Decel Tracking	0
AF Point Switching	-1
AI Servo First Image	Equal Priority
AI Servo Second Image	Equal Priority
One Shot AF Release	Focus Priority
Auto AF Point Sel EOS iTR AF	Enable
Lens Drive When AF Impossible	Continue Focus Search
AF Point Display During Focus	Selected (constant)
Initial AF Point In Servo	Manual AF Point
Subject To Detect	Animals
Eye Detection	On
Roll Angle	0.2
Pitch Angle	19
Focal Length	800 mm
Exposure Mode	Auto
Scene Capture Type	Standard
Lens Model	EF100-400mm f/4.5-5.6L IS II USM +2x III
Keywords	chickadee, Carolina Chickadee, Poecile carolinensis, bird, wildlife, wildlife photography, Oklahoma
Location Shown Country Name	United States
Location Shown Province State	Oklahoma
Description	Carolina Chickadee (Poecile carolinensis) on wild grape vine in Norman, Oklahoma, United States on December 22, 2024
Rights	https://www.rsok.com/copyright.html , Copyright John Moyer, all rights reserved

ExifTool Version Number	13.09
File Name	IMG_2390.dr4
White Balance Adj	Daylight
WB Adj Color Temp	5200
Color Saturation Adj	1
Unsharp Mask Strength	1.7
Unsharp Mask Fineness	1.6
Unsharp Mask Threshold	4
Shadow Adj	0
Highlight Adj	0
Luminance Noise Reduction	1
Chrominance Noise Reduction	1
DLO Setting	70
DLO On	Yes
DPRAW Microadjust Back Front	1
DPRAW Microadjust Strength	8
Crop X	1377
Crop Y	1546
Crop Width	4800
Crop Height	3200
Crop Rotation	0
Crop Angle	0
Crop Original Width	8192
Crop Original Height	5464

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