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ISO Accuracy

The actual sensitivity of each indicated ISO is measured using the same shots as are used to measure ISO noise levels, we simply compare the exposure for each shot to the metered light level (using a calibrated Sekonic L-358), middle gray matched. We estimate the accuracy of these results to be +/- 1/6 EV (the margin of error given in the ISO specifications). Note that these tests are based on the sRGB JPEG output of the cameras, in accordance with the Standard Output Sensitivity method defined in ISO 12232:2006, the standard used by camera manufacturers.

By our tests, the X-E1's measured sensitivities are about 1/3 to 1/2 stop lower than marked, which is unusual for a modern camera. This means that for any given light level, shutter speed and aperture on the X-E1 has to use a higher ISO to get an image of the same brightness as an accurately-rated camera.

Noise and Noise Reduction (JPEG)

Note: this page features our interactive noise comparison widget. By default, we show you the default noise reduction settings of the camera tested, and three other models of the same class. You can select from all available NR options, and from other cameras. The 'tricolor' patches beneath the familiar gray/black/portrait images are taken from the same test chart, and show how noise impacts upon blue, green and red areas of a scene.

The X-E1 does a very good job of balancing noise and fine detail in its JPEG output, even taking its generous ISO ratings into account. Fine detail is retained impressively well at high ISOs where other cameras in its class are visibly suffering; even at ISO 3200 images looks clean yet detailed. Low contrast detail reduces a little at ISO 6400 but the images are still entirely usable. At the two highest settings (12800 and 25600), which are only available in JPEG mode, detail degrades visibly. These modes should probably be reserved for smaller output sizes.

The X-E1 offers five noise reduction settings, which cover a good range of options between reducing noise and maintaining detail. If you want grittier, more detailed output you can set NR to '(-2) Low', while if you're after the smoothest output you can set '(+2) High'. There is little difference up to ISO 400 but at settings higher than that the variation in noise and detail levels becomes more obvious.

Raw noise (ACR 7.4 RC noise reduction set to zero)

As with the the X-Pro1 Adobe Camera Raw's processing of the X-E1's files looks radically different compared to its output from conventional Bayer sensor cameras. Chroma noise is strikingly low, and detail retention is impressively high - very much like the camera's JPEGs, in fact. Because of this, direct comparisons have to be treated with a degree of caution - it's best to assume that the de-mosaicing process of the X-Trans CMOS sensor behaves as though it's doing substantial chroma noise reduction relative to ACR's standard treatment of Bayer sensors. Again we also have to factor in the camera's over-rating of its ISOs.

That said, the output from the X-E1 is remarkably good at high ISOs, and it's difficult to see APS-C Bayer sensor cameras quite matching it at ISO 6400 even with substantial noise reduction applied.

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Comments

Total comments: 10
kreislauf

why was the X-E1 picture taken with a 35mm lens while MFT had the 50mm mounted and FF like A99 or 6D had 85mm???

1 upvote
Menneisyys

The 35mm F1.4 and the 60mm F2.4 Macro (the only two normal / short tele primes at the time of writing) are about equally sharp at f/5.6 and f/8 (see http://slrgear.com/reviews/showproduct.php/product/1487/cat/105 and http://slrgear.com/reviews/showproduct.php/product/1486/cat/105 ). In addition, the 35mm doesn't exhibit much field curvature, unlike, say, the latter-released 27mm/f2.8 pancake (more info on this problem: http://www.photozone.de/fuji_x/855-fuji27f28?start=1 )

0 upvotes
Menneisyys

(cont'd)

Finally, now that the absolutely stellar (see http://slrgear.com/reviews/showproduct.php/product/1674/cat/105 ) Fujinon XF 56mm f/1.2 R is out, non-macro people able to shell out the double the price generally prefer it to the old 60mm F2.4. (Of course, this may not have been a point in choosing the 35mm over the 60mm back then. Nevertheless, we are pretty lucky to have a studio shot demoing the field curvature / sharpness of prolly the most popular Fuji X prime, and not that of one that has since been overshadowed by a newly released one.)

0 upvotes
pscharles

continuing my post . . .

I understand why Fujifilm designed the lens rings with those slim grooves for stylistic reasons, but I find myself frequently turning the wrong one because they all feel the same. I'll get used to it, but a rubber ring on the zoom would help. Also, the zoom ring is stiff and those little grooves are slippery. Rubber would help the grip.

I would suggest turning off the image display as the default is 1.5 seconds. The image display clogs up the EVF for 1.5 seconds making it impractical to follow action. It's in the menu under setup screen 2.

1 upvote
pscharles

Had mine a short while, purchased in part due to this review.

A couple things worth mentioning in terms of this review. The exposure compensation dial on my camera has a very firm detent so there's no chance of an inadvertent movement of the dial. I've loaded body firmware 2.0 and 18-55mm lens firmware 3.0. According to Fujifilm, these updates are supposed to address a number of issues, including the slower focusing. I find the camera/lens focus speed to be quite good with this update in place.

0 upvotes
lbpix

Had my xe-1 2 weeks now and I'm blown away by the quality of the images taken with the kit zoom lens. The images could easily be printed at about 50" and are in practice comparable to my D800. AMAZING!
In use too I love it. The EVF whilst not as clear as an SLR viewfinder, tells me all I need to know and enables me to see all the menus without putting on reading specs. I use it exclusively in EVF mode. It is light and handles superbly. The image stabilisation seems incredible- so far, as good as the D800 shots from a tripod! If you're in doubt, go and buy one.

2 upvotes
Deardorff

Can the back screen be turned off completely so only the electronic viewfinder is used for composing and shooting?

0 upvotes
vratnik
0 upvotes
newtonseye

when you say ":but powering off usually cleared the error." can you expand a bit on that. Was there a different fix at another time?

0 upvotes
Deardorff

What about shutter lag? Any appreciable delay from the time one pushes the button til the shutter actually releases?

0 upvotes
Total comments: 10