Opinion: Love it or Hate it, Digital Correction is here to Stay
- By roby17269
- Canon Lenses
- 213 Replies
Just a case of temptation being there or notI wouldn't describe as having an R5ii as being doomed.
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Just a case of temptation being there or notI wouldn't describe as having an R5ii as being doomed.
As I mentioned, Canon's NnIP produces .CR3 files for further edit, that allows to avoid the TIFF "detour"DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected; astigmatism and coma can be addressed; and both axial and spherical chromatic aberrations can be reduced. Various other lens imperfections due to material, light bending, diffusion in air gaps, etc. can be adjusted as Canon enables. The exact corrections depend on what Canon provides in the data and the age of the DLO interpreter (in-camera vs Mac/PC hosted software, camera model, etc.) so the effect varies between contexts, but essentially Canon engineers provide data about the lens’s design and DLO calculates how the image should be adjusted based on how the light does travel through the lens and therefore what should be presented in a more ideal situation. The raw file itself isn’t modified, insomuch as I am aware, but metadata is added to the raw file for DLO software to use, so while camera bodies are limited to JPEGs and (since models like the R5 and R6) HEICs, desktop systems can also produce TIFFs.
One downside for in-camera corrections is that it takes CPU power and time to do the work, which slows down how fast the HEIC or JPEG files can be produced. I use max DLO in my R6 and have never noticed an issue with animals running about and EF lenses with their limited AF drive in play, but I read that some people do notice this difference and don’t like it — but even then those people could just process the raws on a computer as part of a more advanced image processing workflow.
And yeah, as people mention Canon’s desktop DPP software is showing its age so there’s a bunch of grumbling about at least modernizing the software or passing the capability on to third parties. I just use it to get a DLO refined TIFF that I then edit somewhere else.
How can a lens’s field curvature be corrected in post processing software ?DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected;
I'm fairly certain they will eventually get around to making the APO-LANTHAR 50 mm F2.0 on RF mount.If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!![]()
I have a friend in Nagoya right now who will pick up the カメラレンズ NOKTON 50mm F1 Aspherical RF-mount [キヤノンRF /単焦点レンズ] from Bic Camera (JR Gate Tower).You say the 50mm f/1,0 is under $1050 in Tokyo, is at BIC, Yodobashi or MAP? (I'll be there next October...)
Very very interesting! As soon as they become available, I'll order one.Megadap have announced their Leica M to RF autofocus adapter, so you can mount the Leica M version to RF.
See: https://petapixel.com/2026/02/26/megadap-unveils-worlds-first-leica-m-to-canon-rf-autofocus-adapter/
DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected; astigmatism and coma can be addressed; and both axial and spherical chromatic aberrations can be reduced. Various other lens imperfections due to material, light bending, diffusion in air gaps, etc. can be adjusted as Canon enables. The exact corrections depend on what Canon provides in the data and the age of the DLO interpreter (in-camera vs Mac/PC hosted software, camera model, etc.) so the effect varies between contexts, but essentially Canon engineers provide data about the lens’s design and DLO calculates how the image should be adjusted based on how the light does travel through the lens and therefore what should be presented in a more ideal situation. The raw file itself isn’t modified, insomuch as I am aware, but metadata is added to the raw file for DLO software to use, so while camera bodies are limited to JPEGs and (since models like the R5 and R6) HEICs, desktop systems can also produce TIFFs.If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.
Megadap have announced their Leica M to RF autofocus adapter, so you can mount the Leica M version to RF.If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!
You say the 50mm f/1,0 is under $1050 in Tokyo, is at BIC, Yodobashi or MAP? (I'll be there next October...)
It doesn't apply the "standard" distortion corrections. You have to activate the correction profile in LrC to get rid of the distortions..If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.
If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.Second image is LrC with the appropriate lens profile actived but denoise and DLO applied via NnIP beforehand.
If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!3 years after announcement a brand new copy of the 50mm f/1.0 is now under US$1050 vs the 7.5yo RF 50mm f/1.2 @ under US$1,900 for tourists in Tokyo.
I have ZEISS Planar f/1.4 ZE and used the Focus Guide (Green Box) with it with great satisfaction and success.
Below are 3rd party manual focus lens series that support Focus Guide
EF mount
- Zeiss Classic ZE Series (Planar/Distagon)
- Zeiss Otus
- Zeiss Milvus Series (Original Lineup)
- Samyang/Rokinon XP (Premium MF)
RF mount
- Voigtländer
- Zeiss Otus ML
I just flip up the rear LCD screen on my G7X III to get a waist-level finder. It's bright enough.A classic waiste-level finder is much more useable e.g. in street photography if you want to shoot in a sort of "stealth" approach so people don't necessarily notice that you are taking photographs and don't start their posing (for boring results).
The last one is a great to my criteria, only that net is destructing the photo!!Accipiter nisus, R1/R1/R52 + RF600/4
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Accipiter nisus, R1/R1/R52 + RF600/4
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Why do you need the wings in focus?! That's not the action that you see! Some cliches are really kind of nonsense... (according to my understanding)! If you personally see that wings in real life "frozen" in the frame (in that case honestly I will ask myself if you are not a kind of superhuman) than you feel free to freeze the action as much as you want!This was shot incorrectly, but I wanted to give ISO 25600 a shot at 1/64000 in a pretty dark scene. This should not have been F4 as the wings aren't in focus. Even with movement, the shutter speed should show more of a freeze. There's noise, but it's pretty well controlled and would work for a smaller print.
There is a crop (obviously for the square ratio). The vertical pixels came out at 3118 from 4000px.
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Green-crowned Brilliant Hummingbird • Colombia
EOS R1 • RF 600 F4 L IS USM
1/64000 • F4.0 • ISO 25600
Thanks, Click! I do, too, even with all the distractions.I love the atmosphere that comes across in your photo.. Nicely done, danfaz.
Unlike all these Canons, Sonies and Nikons, Pentaxes are boutique cameras for the discerning elite!![]()
Male Purple-bibbed Whitetip seen while birding at the Avistamiento de Aves Doña Dora, Colombia, November, 2025.
R5MkII RF200-800mm
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After closer look my best choice is the the #3!!! It's great photo but the reason to put it as the best is because I'm not sure what actually I'm looking on: Fan-tailed Raven (Corvus rhipidurus) or Dwarf Raven (Corvus edithae)! I like bird puzzles but this one (with that photo!) is much above my knowledge
Beautiful series of photos. Was this at a hide/feeding station?Accipiter nisus, R1/R1/R52 + RF600/4
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"Professional tools" for sure but there is a growing segment of cashed up amateurs prepared to spend a lot of spare cash on the best.Lenses that cost 4k, 6k 10k are absolute professional tools that you see on the sidelines at stadiums, paired with the highest end bodies, because that’s who they’re designed for. Amateurs are not even a consideration on the development of such products.
I'm with Click: not because he is a friend but because these two are really the best (out of very good...)!