p.3 #1 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
I understand that everyone has there own method to photography but this much technical detail can take the joy away imo. I have an xt5 and I can crop in a little with out losing detail but ymmv. I think you should just get a longer lens depending on what you want to shoot. t
AleDiSciascio wrote:
I'm old enough to remember when highly paid photographers used the Canon 1D to shoot everything and anything and had no problem printing high quality photos for their clients.
I bought a used XT5 which I hope to receive in a few days, upgrading from my X-E2 and I also bought a Viltrox 75 1.2 lens today to add to my existing lenses.
Could someone correct me if I'm wrong in the following thought process?
1. Put the 75 1.2 on the camera.
2. Set the aspect ratio on the XT5 to 1:1
3. Turn on the Digital Teleconverter and set it to 2.0
4. Set the framing lines to 9
5. Shoot framing the subject so that everything I want to capture is in the top 6 squares of the viewfinder.
6. Crop in post using 3:2 ratio basically removing the bottom third of the 1:1 square image
My understanding is that the XT5's native files are 7728x5152
Shooting with the Digital Teleconverter enabled results in size S files: 3888x2592
Shooting with 1:1 aspect ratio and the digital converter should result in a file that is 2592x2592
Cropping that JPG to top 2/3 of the resulting image should yield a file that is 2592x1728
That's still a bit larger than the 2464x1648 files the Canon 1D produces.
Meanwhile if I shoot the viltrox at F1.4 i should be getting an image that is equivalent to ..... 75 * 1.5 (APS C) * 2.0 (Digital TC) * 1.5 (final crop) .... which works out to 337.5mm at F2 equivalent on Full frame.
Where am I wrong?
P.S. To clarify... yes I know any photo that has sufficient detail can be cropped, but I think it would be MUCH easier to compose an image that you already KNOW will be cropped when you can take advantage of the DT and then the grid lines to crop the 1:1 down to a further 1.5x 3:2...Show more →
p.3 #2 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
gyoung143 wrote:
Nothing to do with pixels, it's a matter of magnification, the DoF calculation includes consideration of magnification to produce the print, if you crop, magnification increases and less DoF is evident. Doesn't matter how many pixels you have. Unless you crop so much you can see the pixels, as with grain in film.
Gerry
Did you actually read what I wrote?
"cropping in essentially magnifies part of the image and reveals that a smaller area is "acceptably sharp"
p.3 #3 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
All Fuji images from 26MP sensors can be cropped and still yield a 4K image with very good quality, and the 40MP sensor can be cropped 2.5 times to still get a 4K image with very good quality.
p.3 #4 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
fjablo wrote:
Did you actually read what I wrote?
"cropping in essentially magnifies part of the image and reveals that a smaller area is "acceptably sharp"
Yes I did, with interest, but I seem to have answered with my head full of another thread where DoF is being debated, with the usual misunderstandings related to Fujis so called pixel level DoF calculations.
Apologies for that, I will edit out the post.
Gerry
Jul 11, 2025 at 03:12 AM
AmbientMike Offline • • • • • • [X]
p.3 #5 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
AleDiSciascio wrote:
I'm old enough to remember when highly paid photographers used the Canon 1D to shoot everything and anything and had no problem printing high quality photos for their clients.
I bought a used XT5 which I hope to receive in a few days, upgrading from my X-E2 and I also bought a Viltrox 75 1.2 lens today to add to my existing lenses.
Could someone correct me if I'm wrong in the following thought process?
1. Put the 75 1.2 on the camera.
2. Set the aspect ratio on the XT5 to 1:1
3. Turn on the Digital Teleconverter and set it to 2.0
4. Set the framing lines to 9
5. Shoot framing the subject so that everything I want to capture is in the top 6 squares of the viewfinder.
6. Crop in post using 3:2 ratio basically removing the bottom third of the 1:1 square image
My understanding is that the XT5's native files are 7728x5152
Shooting with the Digital Teleconverter enabled results in size S files: 3888x2592
Shooting with 1:1 aspect ratio and the digital converter should result in a file that is 2592x2592
Cropping that JPG to top 2/3 of the resulting image should yield a file that is 2592x1728
That's still a bit larger than the 2464x1648 files the Canon 1D produces.
Meanwhile if I shoot the viltrox at F1.4 i should be getting an image that is equivalent to ..... 75 * 1.5 (APS C) * 2.0 (Digital TC) * 1.5 (final crop) .... which works out to 337.5mm at F2 equivalent on Full frame.
Where am I wrong?
P.S. To clarify... yes I know any photo that has sufficient detail can be cropped, but I think it would be MUCH easier to compose an image that you already KNOW will be cropped when you can take advantage of the DT and then the grid lines to crop the 1:1 down to a further 1.5x 3:2...Show more →
That's kinda like getting a 20mp p&s and expecting the same iq as 20mp ff, since it has the same number of pixels.
Sensor size does play a big role. And the older 1.3 sensors are larger than the modern aps to begin wirh. I'm sure higher pixel density helps, though.
I'd rather have X-T1 + 70-300 than crop 75mm to 300mm on 40mp. The 70-300 is lighter than the viltrox 75/1.2, supposed to be a good lens, isn't that heavy, to begin with, and the older X-T1 is lighter, if weight is the concern. Cropping effectively makes the sensor smaller, which hurts DR, especially that big a crop, but I dont think 16mp is that bad, at DR, at all
I went through the exercise that I would go through if in a pinch I'd shot that with the Digital Telephoto. So I pretended that the JPG from the digital telephoto had looked intriguing so since I shoot RAW+JPG and I decided this is a keeper I got the RAW file (in this experiment from DPREVIEW but in real life it would be from my camera).
I processed the image in Capture ONE just applying a fuji simulation and applying the lowest level of pre-sharpening.
I then brought it into Photoshop.
In photoshop I first cropped it by 50% (to simulate the 2x digital teleconverter crop, then cropped THAT by an additional 1.5x factor.
I saved that as a max quality JPG.
I then loaded that JPG into gigapixelai and had it double the resolution using it's V1 engine (I have gpai free so I can't use the V2)
Brought the image back to photoshop, applied a very minor amount of "pre-printing" sharpening and then ran my standard "add very very very very minor film grain" action on the image, exported it to JPG.
The link won't work 'cause I dont' know how to do it properly but if you copy the url you can go to the imgur link and if you download it you can get the full size image which is 3346x5020 pixels
Caveats, of course the initial image needs to NAIL focus, but like I said... the result is if anything BETTER than I expected. I imagine that with human subjects in the right conditions it might be even better because I can accept a certain level of softness in a human photo that i might scoff at with architecture.
Jul 11, 2025 at 11:06 AM
AmbientMike Offline • • • • • • [X]
p.3 #7 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
I'm not sure how you got 3346x5020, you should have 10mp after 50% crop/2x, but that's about 17mp.
I'm sure you can crop the X-T5 , but I'd rather fill the frame with 70-300 and it's lighter anyway. Larger sensors tend to do better on people imo
p.3 #8 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
AmbientMike wrote:
I'm not sure how you got 3346x5020, you should have 10mp after 50% crop/2x, but that's about 17mp.
I'm sure you can crop the X-T5 , but I'd rather fill the frame with 70-300 and it's lighter anyway. Larger sensors tend to do better on people imo
original file long side was 7728
2x (digital telephoto equivalent) crop: 3864
1.5x further crop: 2576
gigapixel ai double resolution: 5152
the discrepancy between expected 5152, actual 5020 is because when I did the crop in photoshop I used the "canvas size" feature so I must have cropped off an extra few pixels here and there.
Again, this is NOT something I intend to do on the regular, I just wanted to find out if it was reasonable in a pinch.
One thing is for sure, before going out and buying the 70-300 I bought some rubber bands to (hopefully) fix the zoom creep on my 55-200 and I will be testing THAT on my new XT5 to see if it's sufficient for some soccer photos... knowing that if focus can be nailed, a little extra reach can probably be achieved with the 1.4 or 2.0 DTC if not with a FURTHER crop.
p.3 #9 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
A cropped image run through an upressing tool makes a higher res file that is printable to a decent degree?
Well I never!
I don't know why you'd insist on doing this on a JPEG file when the output of such a workflow would be better served doing all that cropping and upressing against a RAW instead.
p.3 #10 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
RoamingScott wrote:
A cropped image run through an upressing tool makes a higher res file that is printable to a decent degree?
Well I never!
I don't know why you'd insist on doing this on a JPEG file when the output of such a workflow would be better served doing all that cropping and upressing against a RAW instead.
a big part of the reason why after i stopped running a photograohy business i sold all my Nikon gear and switched to Fuji is yes size but more so the "no need to process files unless i absolutely want to" - i should still have a license for lightroom 3 if i find the installer Cd but i don't believe that version had any uprezing features. all i have right now is photoshop CS4 (not upgrading and paying monthly software rental) and whatever software I'm entitled to as the owner of an XT5 so a scaled down version of capture one and another raw converter powered by silkypix... id be shocked if the feature-neutered capture 1 (which doesn't even have a histogram ) would have uprezing.
the silkypiz software is installed but ill have to play with it
p.3 #11 · XT5 using Digital Teleconverter and further crop to get Canon 1D - like files
AleDiSciascio wrote:
To clarify further for those who never shot the 1D, when Kenbennett says "with solid autofocus" what he means is that that camera, released in 2001 would mop the floor with a Fuji XT5 built 24 years later.
The 1D was great for its day, but it’s nowhere near as advanced as today’s subject detection cameras.
Anyone who has spent time doing the focus/recompose method of AF to get focus on eyes knows that you can easily miss the moment trying to grab an eye (or whatever).
Not helping matters, off-center AF points on even the 1D (and 1DM2) leaves with lower-precision AF points similar to those on the 5D and other lower-end cameras.
And then there’s the matter of AF precision, which was rated for either within 1/3rd or 100% of the DOF of the scene, measured in film-era CoC. We all fired long bursts because we all knew that of 20 frames, we’ll get a few hero frames, mostly keepers, and a good amount of misses.
And the icing on the cake is that each lens behaved a bit differently under SLR phase detection, so you had to calibrate each lens to extract maximum performance. I remember spending a lot of time perfecting my AF calibration with my LensAlign, only to learn that the AF miss was different at different distances and zoom levels with some lenses (looking at you EF100-400).
These days, even a low-end body can follow an eyeball around the scene and stay locked on for 90%+ frames with no user effort. Even a Z50II will outperform a 1DM2, and the XT5 has no difficulty beating my old 1DM2, either.
Of course you can get great photos with a 1DM2. It’s no worse than it was at launch day, and it did feel like The Future when it came out. But cameras have come a very long way since then, and if you compare a camera like the 1DM2 to its successors (A1, Z9, etc), it’s not even close.
And let’s not even get started on the 5D. You might as well lock that camera on single-AF point for how useless its off-center AF points were.
