Yeah, I like autoISO in S mode. Set the aperture on the lens, the shutter with the camera dial, and the camera picks the ISO. Almost too easy, although I do go back to M mode, sometimes.
Also like wild bears and would love to catch one in a beautiful setting some day, at a reasonable distance, maybe with a newly acquired Zeiss Contax C-Y 100-300, possibly with a Mutar 2x teleconverter and a tripod...
Could probably also get some incredible shots at a football game, from a far enough distance, in good light, with good DOF. Strawberry canyon has to be one of the more photogenic football locations in the world. Actually, I have been thinking alot about action sports photography with my NEX 5N and MF. With good DOF, and pre-focused to the right location, I think I could pull off some pretty good shots.
There is an interesting thread over at GetDpi that I saw today. It looks like Klaus over at Photozone is having corner issues with two copies of the NEX-7, even with the Sony ZA 85/1.4 and 16-50/2.8. There needs to be a lot more testing of the corners of this camera compared to the 5N, because things are looking pretty weird.
ulrikft2 wrote:
I have shot with quite a few lenses wider than 85mm without any problems.
Howdy. As I mentioned in the other thread, it's tough to say without a direct comparison. In fact, one of the posters in the Photozone threads swore that he didn't see an issue with the ZA 85 on his NEX-7...until he decided to compare it to the NEX-5N. The ZA 85 on the 5N ended up being more uniformly sharp from corner to corner at wider apertures.
Of course, the NEX-7 has a nice resolution advantage in the central portion of the frame, and most probably don't mind if lenses are sharp corner to corner at wider apertures, but I think it's an interesting phenomena that should be explored. It's affected Klaus at Photozone enough that he's reevaluating what to do about lens tests with the NEX-7.
edit: It looks like Klaus is selling his NEX-7s and not going to use them for lens testing.
FlyPenFly wrote:
Hmm I have a za 85 and a c3 and nex7, I'll try to find some time to do a test although it might just be an indoor one.
Cool. You may try focusing in both the center and the edges, so we can see if the sensor causes field curvature. I think the issue is in the f1.4-f2.8 range, if I remember correctly. Heck, I'd be interested in seeing your results with just about any lens you take the time to test. Thanks!
douglasf13 wrote:
Howdy. As I mentioned in the other thread, it's tough to say without a direct comparison. In fact, one of the posters in the Photozone threads swore that he didn't see an issue with the ZA 85 on his NEX-7...until he decided to compare it to the NEX-5N. The ZA 85 on the 5N ended up being more uniformly sharp from corner to corner at wider apertures.
Of course, the NEX-7 has a nice resolution advantage in the central portion of the frame, and most probably don't mind if lenses are sharp corner to corner at wider apertures, but I think it's an interesting phenomena that should be explored. It's affected Klaus at Photozone enough that he's reevaluating what to do about lens tests with the NEX-7....Show more →
Odd. The first thing that comes to mind is that the higher resolution sensor is registering differences in center/edge lens performance that don't show up on the lower resolution 5n. That should be easy enough to detect, though, by comparing the 5n image to a downsampled image from the 7.
gobears wrote:
On the same token, one thing really annoys me with the 5n. I use the histogram to get the best exposure. If I pull up the iso setting, the histogram cannot be viewed. I would love to be able to adjust ISO, with the histogram active. Anyone know a work-around (besides auto-iso)? HOw about the NEX 7, same behavior?
Same with the N7, loose histogram when changing ISO, at least the way I have the buttons setup..
Yes, the N7 high resolution small pixel sensor is giving me fits, also.
It completely trashed the edges and corners of 15, 25, and 35mm lenses. The resolution bump makes it more difficult to judge lens performance. 100% edge crops of the ZM25 on a M8 shows no lateral CA on a distant small TV dish, but the N7 crops brings it out no problem. Then, I wonder if the 24MP was down rezzed to 10MP, most CA would go away.
I was amazed at how the edges turned into mush on the heliar 15. I have calibrated lenses that give exactly sharpest focus at infinity, BTW. Then, it hit me, to see if the focus peaking could show curvature of field on a brick wall 5 feet away, and there was a big difference between center and corner. So, I focused for the edges of a infinity shot and the focus was turned back quite a bit, but the edges were much sharper. So, part of the edge sharpness problem is the Heliar 15 curvature of field.
Interesting results, guys -- thanks. I certainly haven't seen anything weird in the corners from SLR lenses on mine, either. Given the geometry, it's hard to see how it would happen.
It would seem the microlens array is slightly higher (!) on the 7 than on the 5N, and this might do quite a lot of difference when it comes to corner performance. Especially since the pixels themselves under the lenses are smaller... (not by a lot - but still!)
The ZA85 has got quite vicious internal mechanical vignetting - but mostly in the front - meaning that light exits the rearmost lens surface to any given pixel on the sensor from almost any given point of the lens surface. Imagine a line that goes ACROSS the "mirrorbox", from the LEFT side of the 85/1.4 rear lens to the RIGHT side of the sensor. That's quite an angle, actually.
Fly - there's a lot more lateral CA in the F1.4 shots than in the F5.6 shots - how were the images developed? In-camera JPG?
I'm quite certain that the Leica R19mm lens has got a quite benign family of angles. I'd bet quite a lot that the A-mount 85/1.4 is a lot more "to handle" for the camera.
