First of all, thanx for all the replies! Much appreciated.
I would suggest checking that your Dynamic Range setting is at 100% (=OFF), if only to avoid potential confusion.
I've seen discussions on 'fujix-forum' and 'fujixseries' on the subject of Fuji's ISO values. Some users say that Fuji ISOs are not "standard". I have no definite information on whether there's any truth in that, but I sometimes get the impression - when using my Fuji - that there just might be something in it.
Well, my DR is at 100. Maybe the ISO on the Fuji is not standard. Bit of a funny thing though, since I.S.O. means International Standardization Organisation
🙂
That is a good point - not sure if the Fuji sensor is essentially ISO-less in any case and adjustments done in post, though you would think Fuji would adhere to "standard" exposure.
To the OP - I don't think the adaptor should make a difference. Ignoring the separate meter, do images look good at the camera's preferred exposure settings? Does the same exposure show when using say aperture priority mode?
Nope, everything is fine when 'shooting without lens' on Aperture priority mode
Two stops is a lot.
There are many explanations for how different cameras can have different exposure parameters with the same scene. But the only ones I can think of is what tbhv55 and daveleo suggested.
OK, I understand the ISO possibility. but how can the metering mode be a factor when I am technically not using the in-camera meter? I am using a hand held meter. Or actually, several meters, all known to be accurate.
Is that the only lens that has the problem?
Nope, same with the 50mm 1.8 Canon rangefinder lens
The Xtrans I sensor is approximately ISO-less. There is about a 1/2 stop improvement in shadow-region signal-to-noise ratio between ISO 200 and 800. By contrast the D-7000 has hardly any dependence on shadow-region SNR improvement vs. ISO for this range. Above ISO 1600 the XE-1 is almost ISO-less.
The X-Pro 1 sensor has similar (if not identical) properties.
The issue of ISO and standard exposure is murky. Without discussing the details, it is clear the X-Series cameras have about an 1/2 to 2/3 stop difference in meter-determined exposure compared to other Japanese brands. This alone can not account for the OP's issue.
I only understood the last part
😱 (sorry, film shooter, digital newbie)
+1 Put everything to auto and compare the photo exif data to your hand metered readings.. and how does the auto result look?
As well I have found that with the x100t there can be discrepancies with the reported ISO in the exif data when calculated manually based on other exif data.
You might also try resetting all parameters as the layered menus can be tricky ; )
auto mode is fine. I will try resetting everything. If it doesn't work, and the ISO thing is the problem, well shame on Fuji... Kind of limits the use for these camera's, doesn't it? I mean, hand held meters are stil the way to go for a lot of applications...
But I just can't believe it to be true! Why would they?
Still seriously puzzled...
😕
