snapsy wrote:
Thanks for the link. There are some A7r samples presented as being from the G45. They look gorgeous. What's odd though is that the EXIF shows 45mm - not sure how that's possible since there's no electrical connection to the lens. Maybe they edited the EXIF? Anyway here are the full 36MP samples:
douglasf13 wrote:
Not really. Color shift is largely not a big deal and is fixable. Leica fixes it with software for most of their lenses. Smearing is the real killer.
Color shift is a big deal to many - including myself. However, it is not such a big deal that I obsess over it and zoom to 500% to spot it. If I happen to notice it, I will try to get rid of it - usually by cropping if possible. I see it as one more PP step which should be avoided if at all possible. Once an image is "corrected" for color shift, there are usually other minor color adjustments which need to be made. Too bad the A7 has some smearing in the corners but I think the A7R should be much, much better in that regard.
snapsy wrote:
Thanks for the link. There are some A7r samples presented as being from the G45. They look gorgeous. What's odd though is that the EXIF shows 45mm - not sure how that's possible since there's no electrical connection to the lens. Maybe they edited the EXIF? Anyway here are the full 36MP samples:
The above photos are here too, but there are many others
It seems like the G21 is perfect for 2/3 out from the center, then smearing and color shift creep in for the last 1/3 at WO. Stopping down seems to improve a bit, though smearing is still there in the corners.
hiepphotog wrote:
It seems like the G21 is perfect for 2/3 out from the center, then smearing and color shift creep in for the last 1/3 at WO. Stopping down seems to improve a bit, though smearing is still there in the corners.
The images are NEX7 images if you look at the exif data I think he is just demonstrating how the new lenses work on the NEX7 and then shows some outdoor images on his NEX7 with the 21mm - Chinese can be confusing sometimes!
nicoimages wrote:
The images are NEX7 images if you look at the exif data I think he is just demonstrating how the new lenses work on the NEX7 and then shows some outdoor images on his NEX7 with the 21mm - Chinese can be confusing sometimes!
You're right. The two shots in the store were shot with the FF, and they're likely to be WO. The stopped down shots outside were with the NEX-7, confusing since he didn't even label it.
ceder wrote:
Why not use a bent sensor? To hard to put IR-glass and other filters on top?
Sony actually has a patent for a curved sensor so I'm sure it's coming at some point.
When we were discussing it a while back, I suggested a curved sensor might require specially designed lenses, thereby creating a proprietary system...and guaranteeing customers would have to buy all lenses that were specifically designed for such a sensor.
lostinjapan wrote:
Sorry if I missed the answer to this, but how would WA SLR lenses be? Would they be subjected to the same color smearing, etc as RF lenses? I was thinking about getting an 7r as and adapter to use with my Canon EF and Zeiss ZE lenses when I dont want to lug the DSLR around. If it is going to smear things like my 17mm tse then might as well forget the idea.
Ryan
Remains to be seen, Ryan, but they should be fine. The only SLR lenses that would have troublesome ray angles comparable to RF wides are the ones that require MLU on an SLR.
ceder wrote:
Why not use a bent sensor? To hard to put IR-glass and other filters on top?
Unless you then also start to photograph spherical brick walls, I am not sure it helps much. Projecting flat to flat is presumably easier than flat to curved?
Gary Clennan wrote:
Color shift is a big deal to many - including myself. However, it is not such a big deal that I obsess over it and zoom to 500% to spot it. If I happen to notice it, I will try to get rid of it - usually by cropping if possible. I see it as one more PP step which should be avoided if at all possible. Once an image is "corrected" for color shift, there are usually other minor color adjustments which need to be made. Too bad the A7 has some smearing in the corners but I think the A7R should be much, much better in that regard....Show more →
Have you ever tried the Capture One 7 Raw converter? It was originally designed for medium format and technical cameras, so it has an extremely robust color and fall-off correction tool called LCC. You just need to keep profiles for a few common apertures for each of your lenses that cause shifts, and apply them afterwards. It's very good at it, as well as moire reduction.
Have you ever tried the Capture One 7 Raw converter? It was originally designed for medium format and technical cameras, so it has an extremely robust color and fall-off correction tool called LCC. You just need to keep profiles for a few common apertures for each of your lenses that cause shifts, and apply them afterwards. It's very good at it, as well as moire reduction.
Great idea had forgotten that it is very easy to correct it there ! You can also correct it in Lightroom with one of the plugins but you have to convert to DNG first which is an extra step I would rather not have to take in PP. I just hope that SONY can correct the colour shifts in the same way that Leica does either via an APP or with options in the menu. Does anyone know if the APP that Sony have corrects the RAW file too or is it just JPG?
Guari wrote:
I'd love to know what you said here rusty, I just can't decrypt it.
I think he's suggesting the lenses used with a curved sensor would likely not project a flat image, but a curved image as I also mentioned (special lenses specifically designed for the sensor would be used).
g28 redshift on the a7 is not obvious, seemingly slight vignetting, belonging available, but in the r from 2.8 to 22 are on the red completely useless.
