p.191 #1 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
If one turns all auto corrections off in the camera - vignetting and so forth - perhaps the FE 55 does show the issue...or perhaps this is a quality control issue of some sort?
I have all auto corrections off and shoot raw only, FE 55 shows quite abit of vignetting at large apertures but not color cast shown in those flickr "examples".
p.191 #2 · Official: Sony A7 and A7R Fullframe Mirrorless
I suspect (no proof, just a suspicion) some sort of quality control issue. I have observed that magenta cast in blue skies with other A7r samples posted. Previously, I thought this to be an Adobe/ lightroom/ Sony color profile issue but after recently getting an A7r that shows no such cast in blue (my RX1 did - fairly consistently across the frame, not just in the corners, so it was easily correctable), I have to wonder if there might be something else going on (perhaps with specific sensor samples or batches).
If beetlephoto has access to other camera/ lens samples in his camera store, perhaps testing others would reveal if it's a single sample issue with either the lens or camera. I agree that looking at other, second-hand images is inconclusive.
p.191 #3 · Official: Sony A7 and A7R Fullframe Mirrorless
They only have one sample of the 55mm FE for testing at the shop.
I have one of the very first A7r (bought mine in November, the first day it was for sale in Switzerland), maybe this has to do with it being part of the first batch of sensors.
And yes, I have looked at the photos I linked (surprise, I don't just post random pictures!!) - I'm no Sony hater there - just trying to assess if that's the same for all samples, because I really like the 55FE otherwise and was considering buying it; and I love my A7r otherwise.
As mentioned before, once stopped down, the magenta cast goes away, from my own testing.
p.191 #4 · Official: Sony A7 and A7R Fullframe Mirrorless
wfrank wrote:
I saw that yesterday but if it was true I think we should have seen a press release from Sony by now.
I think they just officially put the specs and name of the lens on the roadmap, didn't show any pre-release example or mock-up. I would guess it is not available till fall.
More interested in what the Zeiss "wide aperture prime" will be.
p.191 #5 · Official: Sony A7 and A7R Fullframe Mirrorless
beetlephoto wrote:
As mentioned before, once stopped down, the magenta cast goes away, from my own testing.
If the magenta cast is only there wide open - and with this lens on your A7r - then I would probably suspect a lens issue (if it's not the case with other FE 55's wide open and all corrections turned off).
p.191 #6 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
If the magenta cast is only there wide open - and with this lens on your A7r - then I would probably suspect a lens issue (if it's not the case with other FE 55's wide open and all corrections turned off).
I"m not sure, the lens does not seem to have any de-centering problems, and seems find in terms of sharpness, from what I can tell. I also tested the FE 35mm, and I get the same magenta cast, except it does not disappear even stopped down. Maybe a sensor "issue", then. It would be nice to get input from early acquirers of an A7r. I'm surprised as I don't get any magenta cast with a Leica 50mm noctilux (M-mount).
p.191 #7 · Official: Sony A7 and A7R Fullframe Mirrorless
beetlephoto wrote:
I also tested the FE 35mm, and I get the same magenta cast, except it does not disappear even stopped down. Maybe a sensor "issue", then. It would be nice to get input from early acquirers of an A7r. I'm surprised as I don't get any magenta cast with a Leica 50mm noctilux (M-mount).
The 35 FE is known to give Magenta color vignetting with corrections off (so I would not take that finding into account).
p.191 #8 · Official: Sony A7 and A7R Fullframe Mirrorless
beetlephoto wrote:
I"m not sure, the lens does not seem to have any de-centering problems, and seems find in terms of sharpness, from what I can tell. I also tested the FE 35mm, and I get the same magenta cast, except it does not disappear even stopped down. Maybe a sensor "issue", then. It would be nice to get input from early acquirers of an A7r. I'm surprised as I don't get any magenta cast with a Leica 50mm noctilux (M-mount).
Both the FE35 & FE55 will exhibit the same magenta donut + gradient-toward-corners effect in some shooting conditions. This is seen across enough different photographers that it's almost certainly an artifact of the lenses' designs and/or their interaction with the sensors, and not a QA issue.
It is trivially reproducible with an Expodisc-type tool (or white sheet of paper) with the FE35 at least. I only exhaustively tested with that lens, but the donut/cast did not go away with stopping down. I've only had the FE55 for 1.5 months so haven't gotten around to/bothered testing it. In my experimentation with the FE35 + in-camera corrections, none remove or even diminish the cast - one needs to do it in post-processing.
I haven't had noticeable impact from it in real shooting, but there are numerous blue or gray sky or snowy field photos from both lenses in the a7(r) images thread where the artifact is clearly visible in normal scenes without heavy processing.
p.191 #9 · Official: Sony A7 and A7R Fullframe Mirrorless
Why not test some trivial PP to get rid of it if you find it bothersome? I like both lenses (55/1.8 & 35/2.8) but find myself using others most of the time. But not for any of the reasons found in the last page.
I am not that sensitive but it was easy to provoke magenta casts in skies from various lenses on my late 5D2. If it happens to be about CA SOOC ACR does it almost always with a click.
p.191 #10 · Official: Sony A7 and A7R Fullframe Mirrorless
A small but maybe important hint from my experience of using third party lenses with the A7R: it is very useful to buy some cheap E-mount rear lens caps which can be used to detach lens plus adapter. The adapter can just remain on the lens and can be closed with the fitting E-mount rear lens cap until you need to reattach this assembly again. I often do this because I change from Canon FD to EF lenses (or vice-versa) quite often and mostly leave the FD lens attached to the adapter.
I also bought a (third party manufactured) Canon front lens cap to be able to close my Metabones III adapter with it and with an E-mount rear lens cap. Makes it easier to protect the adapter and to transport it. Anybody else made the same experience?
p.191 #11 · Official: Sony A7 and A7R Fullframe Mirrorless
I agree 100% retrofocus, I ordered from Amazon the Sony E body cap to use on my Metabones III adapter, it just stupid for $400 adapter no caps!
I read that the ebay Sony knockoffs are loose and I just for fun ordered 3 sets 1 for the body & rear lens caps set of 2 for $.99 shipped and I will post back when they get here in about a year .
p.191 #13 · Official: Sony A7 and A7R Fullframe Mirrorless
Looking for some advice. I have an a6000 coming in today with the 16-70 Zeiss (couldn't resist the $300 bundle savings). Assuming it's able to take care of my needs for quick AF shooting (my daughter walking/running) and general family shooting (taken care with the zoom), would you recommend the a7 or a7r?
If I do go with a 2 camera setup I would most keep the zoom attached to the a6000 and use the FF as a native prime only (would get the 55 first). I may add some APS-C glass later as well (had the 24 Zeiss and the 50 macro does look yummy) I do have a carbon fiber Gitzo tripod but would prefer handheld most of the time. I'm drawn by the 36mp a7r but don't want to worry about blur, etc. I do a fair bit of day trips with the family so having a camera to be able to take pictures of say a sunset on the beach or a 150 yr old church or those moments we define as epic photo taking opportunities has me leaning towards the a7r. I would eventually add the 35 but not right away. Same goes for adapted glass, possibly later but not right away.
p.191 #14 · Official: Sony A7 and A7R Fullframe Mirrorless
beetlephoto wrote:
If that helps, I have ordered these: 5x Sony E-mount caps
and they fit perfectly.
in my sony days i glued them together backside on backside
which is very easy because of the teath.
leica has (had?) something similar for easy lens changing ....
r
p.191 #15 · Official: Sony A7 and A7R Fullframe Mirrorless
I have the sony battery grip with 2 sony brand batteries inserted in my a7r and a sony/zeiss 24-70 f/4 oss lens attached. Battery no 1 has 80% charge remaining. I switch both the camera and grip Off overnight on my coffee table so nothing can possibly be accidentally suppressing any buttons. The next morning, battery no. 1 is down to 78%! Wtf? What has drained 2% battery life overnight without being used? I only decided to do this controlled test after seeing battery drain when leaving the camera inside my bag and thought something might be suppressing something, but this controlled test was in open air. Plus, I've already tried a second set of batteries in case it was just bad batteries. Anyone have any ideas? My next test is to try and use a lense without oss in case somehow the oss lens is still sucking power even after the camera and grip is turned off. And next test after that is to leave the battery grip off and use just one battery to see if the grip is draining the battery. Anyone with similar experience? Any ideas? -W
p.191 #17 · Official: Sony A7 and A7R Fullframe Mirrorless
I would say a 10% drop over a week is normal on most cameras. Most cameras have horribly miscalculated and calibrated batteries. My Nikon, canon, and olympus batteries would often die with 20% or more reported. So far, Sony has been far more accurate.
p.191 #18 · Official: Sony A7 and A7R Fullframe Mirrorless
Before I did the test, when left the sony in the bag, I saw a steady decrease in battery power over a period of a week at which point it had already lost about 25percent, so I doubt it's just a case of poorly calibrated battery indicator, it's actually losing power, again the power switch is Off on both the camera and grip. I don't recall any of my Canons losing any significant power over time, but of course the Canons, at least for the 5dii, 7d, and 40d omly had bars and not a numeric indicator. That said, I haven't used my 7d for about 6 months now, and at least the bars still show it as fully charged. At the sony's rate of losing about 5% charge every 24 hours, my 7d should be fully drained, but it is not, it is still fully charged.
p.191 #19 · Official: Sony A7 and A7R Fullframe Mirrorless
Hello TMaG82, well I don't have the Sony A7 but maybe that's a better choice because uses your new zoom in crop mode on the A7 and I have not heard anything bad about the A7 as I there is many on the A7r and can say for a fact because of no first curtain shutter (maybe firmware with self timer will help) and have had that issue, the A7 maybe a better choice.
24 mp to 36 is really not a great deal and unless you are going to blowup a lot or make huge prints than the 36 mp is wasted for with that trade off over the A7.
Take you time and do some more reading and then you can make the correct choice as what I want and need maybe not what you want or need?
But your are a a great place to make that choice here on FM.
p.191 #20 · Official: Sony A7 and A7R Fullframe Mirrorless
Hello rsrsrs, you read my mind! That's is my plan as in the good old days with Canon FD caps I would use JB Weld and out them back to back and then after 24 hrs attach lenses to them and it made it easier to handle and was thinking of the same way with the 55 & 35 together.
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