27mm vs. X100

I have an X100T and vignetting and distortion isn't an issue at all. It's all corrected in camera.
Actually, according to Photozone, even the corrected JPGs show .8 EV of vignetting wide open.

Anyway, I pointed this out as the OP was asking about the IQ of the lens. For some people, the raw performance is important. After all, pushing the edges 2 EV when the ISO is already high, or shadows are being lifted in a raw file, will result in more visible noise.
 
a better question perhaps is which one fits you better.

I "lent" my X-100 to my granddaughter and attempted to replace it with the 27mm (on sale) attached to my X-M1. Granted it's not the X-T1 but perhaps the point is still valid. It just wasn't the X-100. It didn't do the things or fit me the way the X-100 did.
 
Which one of these two has better IQ? Not just resolution.

Enrique
The 27 does have heavy vignetting (2 ev) wide open (but normal stopped down).
Are you sure it's not just your copy? I haven't noticed any vignetting with my 27, I'm pretty sure I would have noticed 2EV darkening at the edges.

PS I've just check both JPEG and RAW on images with this lens at f2.8- no significant vignetting that I can see.
Also, a little distortion, and a little field curvature.
Not something I've noticed but I haven't specifically looked for it either.
So, not Fuji's strongest prime effort, but then it's tiny and affordable. It's know for it's superb resolution across the frame, particularly stopped down. Arguably one of Fuji's best landscape lenses, if you like the focal length.

I'm not sure how that compares to the X100 lens.
 
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Which one of these two has better IQ? Not just resolution.

Enrique
The 27 does have heavy vignetting (2 ev) wide open (but normal stopped down).
Are you sure it's not just your copy? I haven't noticed any vignetting with my 27, I'm pretty sure I would have noticed 2EV darkening at the edges.

PS I've just check both JPEG and RAW on images with this lens at f2.8- no significant vignetting that I can see.
Also, a little distortion, and a little field curvature.
Not something I've noticed but I haven't specifically looked for it either.
So, not Fuji's strongest prime effort, but then it's tiny and affordable. It's know for it's superb resolution across the frame, particularly stopped down. Arguably one of Fuji's best landscape lenses, if you like the focal length.

I'm not sure how that compares to the X100 lens.
 
The whole thread can be summed up by saying you'll have to buy one and try it.
 
I asked the same question of a friend of mine who owned both and he seemed in little doubt that the 27mm would be the best choice unless the X100 was going to be the only focal length I wanted. As much as he loved his he rarely used it.
 
I asked the same question of a friend of mine who owned both and he seemed in little doubt that the 27mm would be the best choice unless the X100 was going to be the only focal length I wanted. As much as he loved his he rarely used it.

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https://www.flickr.com/photos/34270522@N04/
I have to agree that if a person has just one camera an X100 series camera may not be the best choice.

They are very good cameras and I think the 23mm lens is excellent but, let's be honest, there are times when a 35mm equivalent lens just isn't a very good choice.

I, personally, like a 35mm field of view and find the X100S a great camera, for general type photography, but I agree with your friend that an interchangeable lens camera makes more sense for most people.
 
I asked the same question of a friend of mine who owned both and he seemed in little doubt that the 27mm would be the best choice unless the X100 was going to be the only focal length I wanted. As much as he loved his he rarely used it.

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https://www.flickr.com/photos/34270522@N04/
But I already have an interchangeable lens camera. My options are now an X100 or a 27mm lens. The deciding factor is the IQ of both lenses.

Enrique
 
There will not be a visible difference in normal photographic use. Honestly
 
I asked the same question of a friend of mine who owned both and he seemed in little doubt that the 27mm would be the best choice unless the X100 was going to be the only focal length I wanted. As much as he loved his he rarely used it.

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https://www.flickr.com/photos/34270522@N04/
But I already have an interchangeable lens camera. My options are now an X100 or a 27mm lens. The deciding factor is the IQ of both lenses.

Enrique
I guess it just comes down to a personal preference.

I'm sure the 27mm lens is very good but I, personally, prefer the 35mm equivalent, 23mm lens.

I primarily use the X100S for indoor photos, with normal indoor type lighting, and also prefer the 2.0 lens over the 2.8 but if most of your pictures are taken outdoors I doubt that you'll notice much difference between the speed of the two lenses.

I don't own the 27mm lens so can't comment on any of it's qualities but I can say the 23mm lens on the X100 series is excellent.

Good luck
 
But the X100 series has the hybrid viewfinder. That too me is its salient feature.

And doesn't the 27mm lack an aperture ring?
In my opinion, the new lens about to be released should have been a 23mm f2 and not another 35mm. But that I imagine Fuji think would reduce sales of the x100t and we can't have that now!
But Fuji already makes the great 23mm 1.4 lens and the only negative thing about that lens is that it costs about $900.00
You are right of course, but too big - not why I bought into this system - and far too expensive!
 
I just gave my X100 to my wife, and I already miss it. An inexpensive alternative to buy another X100 (original, S or T) would be to mount the 27mm on the XT1 or XE1 I already have. Size would be similar. Do you know how the 27mm compares in IQ with the 35mm equivalent on the X100 series?

Enrique
I just re-read your post. The inexpensive alternative is to buy the 27, not another X100, let alone X100T. The difference between an X100 and X100S/T is far greater than any lens difference. You have an XT1 and you have files from an X100. How do you feel about the difference?

With all of the camera bodies you own, you have the ability to test the focal length difference. The draw difference is negligible compared to the 18-55 set at 27.

People are obviously different. My wife and I both shoot FujiX. We have an X100T, XE1 and XT1, along with 7 Fuji lenses and 4 adapted lenses. We share. Works well. That's another low cost alternative.
 
Which one of these two has better IQ? Not just resolution.

Enrique
The 27 does have heavy vignetting (2 ev) wide open (but normal stopped down).
Are you sure it's not just your copy? I haven't noticed any vignetting with my 27, I'm pretty sure I would have noticed 2EV darkening at the edges.

PS I've just check both JPEG and RAW on images with this lens at f2.8- no significant vignetting that I can see.
Also, a little distortion, and a little field curvature.
Not something I've noticed but I haven't specifically looked for it either.
So, not Fuji's strongest prime effort, but then it's tiny and affordable. It's know for it's superb resolution across the frame, particularly stopped down. Arguably one of Fuji's best landscape lenses, if you like the focal length.

I'm not sure how that compares to the X100 lens.
 

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