Anyone switched from Canon to Fuji? Question about metering

Wilt wrote in post #18585941
You do NOT need a small gray card or spotmetering. Re-read what I originally suggested you do for testing, in post #2

Thanks. Here's my follow up post regarding what you said to do: https://photography-on-the.net …showthread.php?​p=18585452

I came across this link today which seems to outline exactly what I'm experiencing. Seems that when the X-T1 was released, this was a hot topic of conversation:

https://www.dpreview.c​om/forums/post/5530677​7

I guess from reading the responses there that the X-T1 rates their ISO differently than Canon. So if I'm manually setting ISO, Aperture and allowing the camera to determine the shutter speed then if the ISO is rated differently, i.e., it's less sensitive on the X-T1 then it will need a slower shutter speed to get the same exposure. I assume, couple that with the fact that I'm comparing a full frame camera with a prime lens to a crop with a variable zoom lens, then that makes a difference as well.

But when I equalised your sample images the resulting shutter speeds matched? So forgetting any metering, set the aperture, ISO & shutter to the same values on both cameras and your images will by as close as makes no difference.

deronsizemore wrote in post #18586347
I came across this link today which seems to outline exactly what I'm experiencing. Seems that when the X-T1 was released, this was a hot topic of conversation:

https://www.dpreview.c​om/forums/post/5530677​7

I guess from reading the responses there that the X-T1 rates their ISO differently than Canon. So if I'm manually setting ISO, Aperture and allowing the camera to determine the shutter speed then if the ISO is rated differently, i.e., it's less sensitive on the X-T1 then it will need a slower shutter speed to get the same exposure. I assume, couple that with the fact that I'm comparing a full frame camera with a prime lens to a crop with a variable zoom lens, then that makes a difference as well.

There may be a slight variance, but it's nowhere near two stops (which is what your tests showed).

Put them both into full manual for everything and see where the EV meter and histograms are. There has to be some setting on one of the cameras that's throwing something off... or the type of lighting is having an adverse effect on one (or both) of the cameras meters. Did you for sure check to see that they didn't have different minimal shutter speeds set for Av mode?

Two Hot Shoes wrote in post #18586359
But when I equalised your sample images the resulting shutter speeds matched? So forgetting any metering, set the aperture, ISO & shutter to the same values on both cameras and your images will by as close as makes no difference.

EverydayGetaway wrote in post #18586462
There may be a slight variance, but it's nowhere near two stops (which is what your tests showed).

Put them both into full manual for everything and see where the EV meter and histograms are. There has to be some setting on one of the cameras that's throwing something off... or the type of lighting is having an adverse effect on one (or both) of the cameras meters. Did you for sure check to see that they didn't have different minimal shutter speeds set for Av mode?

Thanks all for hanging in there with me on this (I know I've got a touch of OCD with this stuff lol)

So here's two test shots I took. I know they are underexposed but I didn't really take care to get them right, I was more concerned with getting the same settings on each camera.

5DMII: https://app.box.com …4osfodi2pr2ylg2​r9hpsd4yz9

X-T1: https://app.box.com …hikn5fzt2qvd7d6​kk1w4ioxfh

These were shot in manual at ISO 800, Shutter 1/125 and Aperture 4.0.

You can see the Fuji is maybe slightly more underexposed than the Canon, but it's really not that much difference. In looking at the meter on both of these before shooting, they were similar in that the Canon showed -1 and the Fuji showed a little more than -1.

Obviously one could expect a little difference between the two systems and in my estimation when both cameras have exactly the same settings there's exactly that, very little difference in the exposure. That said, it seems so odd to me that when in aperture priority mode that the Fuji would have so much different of a shutter speed than the Canon, but I suppose I can simply set the Fuji to aperture priority mode and set exposure compensation -2/3 or so like the other person said they did and it will be pretty much the same as the Canon exposure from Av mode.

Also the Fuji (and Canon) jpeg engine will treat the processing of the files differently, to see the real results you really need to do it with raw files. I don't remember having any issues like that when I was shooting a 5D3 and X-T1 side by side just thinking there must be an option somewhere that is tinkering.

Two Hot Shoes wrote in post #18587344
Also the Fuji (and Canon) jpeg engine will treat the processing of the files differently, to see the real results you really need to do it with raw files. I don't remember having any issues like that when I was shooting a 5D3 and X-T1 side by side just thinking there must be an option somewhere that is tinkering.

Thanks. Yeah I have only been shooting RAW on both.

I keep thinking there must be a setting/option as well but who knows? Maybe I'll try to get a video tomorrow of both camera settings and a couple test shots using the live view LCD so you can see what I'm seeing.

deronsizemore wrote in post #18586347
I came across this link today which seems to outline exactly what I'm experiencing. Seems that when the X-T1 was released, this was a hot topic of conversation:

https://www.dpreview.c​om/forums/post/5530677​7

I guess from reading the responses there that the X-T1 rates their ISO differently than Canon. So if I'm manually setting ISO, Aperture and allowing the camera to determine the shutter speed then if the ISO is rated differently, i.e., it's less sensitive on the X-T1 then it will need a slower shutter speed to get the same exposure. I assume, couple that with the fact that I'm comparing a full frame camera with a prime lens to a crop with a variable zoom lens, then that makes a difference as well.

I can't recall where I posted it on the POTN but I remember I used my 5dmk3 and Fuji X-t10 in my home studio. Using manual mode I used identical settings with fixed SS/ISO and aperture with a studio strobe in a pitch dark room. The difference in exposure was substantially different between the two. I'm trying to recall but I think there was a good 2/3 stop difference in exposure.

Don't worry so much about the differences between fuji or Canon. Your goal is to attempt the best exposure with whatever gear is in your hands.

You've probably observed that your 5dmk2 at high iso has a purple magenta when you uplift shadows. The XT1 seems to have better dynamic range than the 5dmk2's generation FF sensor.

Play with both camera's and use whatever works for you in different types of situations.

AlanU wrote in post #18590539
I can't recall where I posted it on the POTN but I remember I used my 5dmk3 and Fuji X-t10 in my home studio. Using manual mode I used identical settings with fixed SS/ISO and aperture with a studio strobe in a pitch dark room. The difference in exposure was substantially different between the two. I'm trying to recall but I think there was a good 2/3 stop difference in exposure.

Don't worry so much about the differences between fuji or Canon. Your goal is to attempt the best exposure with whatever gear is in your hands.

You've probably observed that your 5dmk2 at high iso has a purple magenta when you uplift shadows. The XT1 seems to have better dynamic range than the 5dmk2's generation FF sensor.

Play with both camera's and use whatever works for you in different types of situations.

Thanks. Makes sense. I think you're right about the 2/3 stop difference. When I've got both camera's set to aperture priority mode, if I adjust exposure compensation -2/3 on the Fuji it gives me nearly the same shutter speed as the Canon. I'm not going to let it bother me. Honestly from the example shots I've taken around the house I'm liking the photos from the X-T1 better than my Canon, so not much to complain about.

deronsizemore wrote in post #18591029
Thanks. Makes sense. I think you're right about the 2/3 stop difference. When I've got both camera's set to aperture priority mode, if I adjust exposure compensation -2/3 on the Fuji it gives me nearly the same shutter speed as the Canon. I'm not going to let it bother me. Honestly from the example shots I've taken around the house I'm liking the photos from the X-T1 better than my Canon, so not much to complain about.

That's really not the right way to test this. You need to set both cameras to the exact same settings manually and compare the unedited RAW files.

EverydayGetaway wrote in post #18591037
That's really not the right way to test this. You need to set both cameras to the exact same settings manually and compare the unedited RAW files.

Thanks. I did that here: https://photography-on-the.net …showthread.php?​p=18587096

deronsizemore wrote in post #18591054
Thanks. I did that here: https://photography-on-the.net …showthread.php?​p=18587096

That's not an apples to apples comparison though... the focal length and/or distance from the subject are not the same, nor are those RAW files... every camera applies some form of processing when producing JPEG images, usually this is where the differences lie.

When I conducted these tests myself with my X-E2 and a7S I found less than 1/3 a stop difference between the two RAW files, not even worth mentioning really imo. It most certainly doesn't explain the 2 stop difference in shutter speed with your previous examples.

EverydayGetaway wrote in post #18591068
That's not an apples to apples comparison though... the focal length and/or distance from the subject are not the same, nor are those RAW files... every camera applies some form of processing when producing JPEG images, usually this is where the differences lie.

When I conducted these tests myself with my X-E2 and a7S I found less than 1/3 a stop difference between the two RAW files, not even worth mentioning really imo. It most certainly doesn't explain the 2 stop difference in shutter speed with your previous examples.

The files are .jpg now, but they were RAW files which I exported as .jpg without any processing from Lightroom.

But at any rate, the focal lengths are different which I suspected played a part in the difference. As for the two stop difference in shutter speed, I have no idea. I'm just moving on and not going to worry about it I guess

Thanks

I'm going to dust off a 5D3 over the weekend and test this out for myself, my curiosity is well peaked.

Two Hot Shoes wrote in post #18591126
I'm going to dust off a 5D3 over the weekend and test this out for myself, my curiosity is well peaked.

Pitch black studio with studio strobes I recall showing “us” Fuji lovers the difference in the Fuji / canon difference in iso.