p.15 #1 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Holger wrote:
We will see, I doubt it. We have field curvature to consider, too. The 50/1.4 has a significant midzone dip, shown by DPreview in their review and lensrentals optical bench measurements.
For me at f1.2/f1.4 I would like to have the inner 2/3rds of the image circle to be sharp and dont care about the very corners at all!
I agree, with a lens like this, the edge resolution is not that important, even if I like to photograph landscapes with an open aperture because of the look.
Maybe / probably Lenstip received a weaker copy.
(According to their samples, my Sony Zeiss is at least equivalent to the f1.4 in the midzone. In the center, the GM is even better than the GM. Here is a picture, if you are interested, you can show me the horrible midzone dip: https://www.flickr.com/photos/helmhagen/50907551708/in/dateposted-public/ and that is quick and sloppy manually focused by hand while skiing, so it is possible to get even sharper results at f1.4.)
p.15 #2 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
derKoekje wrote:
That's such a non-issue. I've shot thousands of photos and only had it occur once. It's pretty easily fixed.
Disagree. We are shooting into the sun a lot and have it regularly. We know many many fellow photographers having it, too. It happens predominately with A73/A9. The A92 is better behaved, but still shows it. The new models like A7riv don't show it (or almost minimally from time to time), the same with the A1. Our latest session revealed, luckily, no such issues.
I don't find it is easy to resolve. We use the Raw Therapee filter, convert to Tiff and reimport to LR, but that costs time. Not nice when looking through thousands of images.
p.15 #3 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
HelBen85 wrote:
I agree, with a lens like this, the edge resolution is not that important, even if I like to photograph landscapes with an open aperture because of the look.
Maybe / probably Lenstip received a weaker copy.
(According to their samples, my Sony Zeiss is at least equivalent to the f1.4 in the midzone. In the center, the GM is even better than the GM. Here is a picture, if you are interested: https://www.flickr.com/photos/helmhagen/50907551708/in/dateposted-public/ and that is quick and sloppy manually focused by hand when skiing, so it is possible to get even sharper results at f1.4.)
I always handle results from testers with care.
Lensrentals is excellent, having the most objective measurements (and several copies in addition), but at infinity. They often provide field curvature measurements, too. I find that importantant. My 21 Loxia was plagued by that and required optimal focussing to get optimal corner sharpness.
Lenstip does their MTF at a different distance and only tests one copy.
I usually like seeing the samples here at FM to get an idea how sharpness behaves at different distances. We have two 50/1.4 and they are both very good but for portraits I can see the midzone dip until about f2. I will sell one and replace it with the f1.2GM, which my wife will use, mostly. I stick with the 50/1.4 for now.
p.15 #4 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
HelBen85 wrote:
I agree, with a lens like this, the edge resolution is not that important, even if I like to photograph landscapes with an open aperture because of the look.
Maybe / probably Lenstip received a weaker copy.
(According to their samples, my Sony Zeiss is at least equivalent to the f1.4 in the midzone. In the center, the GM is even better than the GM. Here is a picture, if you are interested, you can show me the horrible midzone dip: https://www.flickr.com/photos/helmhagen/50907551708/in/dateposted-public/ and that is quick and sloppy manually focused by hand while skiing, so it is possible to get even sharper results at f1.4.) ...Show more →
Photos posted on Flickr won't show anything. That photo, for example, doesn't display on my 4K monitor as critically sharp anywhere, let alone the midzone. But I know that is Flickr, not you, the camera or the lens.
You need to post a 100% crop or a RAW for download.
p.15 #5 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Dave Sanders wrote:
Photos posted on Flickr won't show anything. That photo, for example, doesn't display on my 4K monitor as critically sharp anywhere, let alone the midzone. But I know that is Flickr, not you, the camera or the lens.
You need to post a 100% crop or a RAW for download.
Besides, it's a fact that ZA has a midfield resolution dip.
p.15 #6 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Dave Sanders wrote:
Photos posted on Flickr won't show anything. That photo, for example, doesn't display on my 4K monitor as critically sharp anywhere, let alone the midzone. But I know that is Flickr, not you, the camera or the lens.
You need to post a 100% crop or a RAW for download.
Of course, you are right.
But on my 4 screens here (Full HD, 4k and 5k) the Flickr picture looks sharper than 2/3 of the picture of the wide-open samples of the 50mm GM provided by Lenstip.
As I said, at least the edges don't look good. You can see that clearly. Nowhere in the picture does my example have such smearing. You can see that without having a RAW file.
But I can't make a comparison at the moment because the GM isn't available for sale yet.
p.15 #8 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
j4nu wrote:
Besides, it's a fact that ZA has a midfield resolution dip.
Which is differently pronounced, depending on the respective copy and I've tried a few.
My exemple is an example in 4k resolution taken at open aperture without tripod. The midzone dip doesn't seem that bad on my copy. In any case, you can see the bad corners in the Lenstip examples more quickly.
I stick to what I see rather than what others tell me. I can live with this kind of horrible midzone dip
In this forum I have already read that the 50mm ZA had a bad bokeh, until it was found out (very useful information for me at the time!) That this was only due to the use of the EFCS. What matters are the results that you can achieve yourself.
What is a fact, one should be careful with that.
p.15 #9 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Holger wrote:
Disagree. We are shooting into the sun a lot and have it regularly. We know many many fellow photographers having it, too. It happens predominately with A73/A9. The A92 is better behaved, but still shows it. The new models like A7riv don't show it (or almost minimally from time to time), the same with the A1. Our latest session revealed, luckily, no such issues.
I don't find it is easy to resolve. We use the Raw Therapee filter, convert to Tiff and reimport to LR, but that costs time. Not nice when looking through thousands of images.
This is one area where I, at least from a theoretical point of view, think Canon’s dual pixel AF is superior as that is immune to this issue. But hopefully it is subdued enough on the A1 as you initial testing implies.
p.15 #10 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
HelBen85 wrote:
Which is differently pronounced, depending on the specimen and I've tried a few.
It is an example in 4k resolution with an open aperture. The midzone dip doesn't seem that bad on my copy. In any case, you can see the bad corners in the Lenstip examples more quickly. Which is differently pronounced, depending on the specimen and I've tried a few.
It is an example in 4k resolution with an open aperture. The midzone dip doesn't seem that bad on my copy. In any case, you can see the bad corners in the Lenstip examples more quickly.
I stick to what I see rather than what others tell me. I can live with this kind of horrible midzone dip
I think the issue is that the midzone dip doesn't fully go away. Very few shoot critical landscapes at f/1.4. Stopped down, the 50/1.2 has even, sharp performance across the field. Obviously, further investigation is needed. We can all hope Fred has one on the way
I think the point people are making is that the 50/1.2 is sharper in the center wide open, sharper across the field stopped down. Win-win. Both lenses are outstanding, both too expensive for me and for what I use a 50mm for. I'd rather have the CV 50 APO.
p.15 #11 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Yeah, hard to resist the GAS. I just convinced myself that all I need in the 50mm focal range is the CV 50 APO. So sharp and compact. Then this announcement comes in and I’m like “come to me, big girl.”
weirdo021 wrote:
The GAS is strong with this one. Still waiting for my GM 35 and just recevied my CV 40 for my 1.2 needs..😅
p.15 #12 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Dave Sanders wrote:
I think the issue is that the midzone dip doesn't fully go away. Very few shoot critical landscapes at f/1.4. Stopped down, the 50/1.2 has even, sharp performance across the field. Obviously, further investigation is needed. We can all hope Fred has one on the way
I think the point people are making is that the 50/1.2 is sharper in the center wide open, sharper across the field stopped down. Win-win. Both lenses are outstanding, both too expensive for me and for what I use a 50mm for. I'd rather have the CV 50 APO.
I see it the same way.
After the few examples I've seen of the 50mm GM, I think it's a fantastic lens and I've never said something like this so quickly, I'm usually extremely critical ...
I really like the look of the first pictures.
I don't care at all whether the edges drop off a bit. I just wanted to say that I noticed this and that I know my 50mm ZA very well and consider the sharpness of the 50mm ZA at open aperture to be more homogeneous based on these first images. In this forum you usually devote yourself to such details.
Anyway, I like the GM very much and I will pre-order it. Also something I've never done before.
p.15 #13 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Stoffer wrote:
This is one area where I, at least from a theoretical point of view, think Canon’s dual pixel AF is superior as that is immune to this issue. But hopefully it is subdued enough on the A1 as you initial testing implies.
Agree! But as I don't see it on the A7riv or A1, when testing it, I am happy.
p.15 #14 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
The mid-zone dip is noticeable and happens with all the copies I've tried and used personally. It's my main negative for the 50/1.4 ZA because the mid-zone is usually where I position my subject.
p.15 #15 · Pre-order: Sony FE 50mm f/1.2 GM ($1,998)
Fred Miranda wrote:
The mid-zone dip is noticeable and happens with all the copies I've tried and used personally. It's my main negative for the 50/1.4 ZA because the mid-zone is usually where I position my subject.
Having said that the 50/1.4 is one of the sharpest 50mm lenses in the market at center. (especially at f/2)
I do believe you. Thank you for this test.
But I wouldn't have noticed that on my copy, and I usually notice things that others don't.
As I said, the / my 50mm ZA at an A7RIII is fully suitable for landscape wide open. You can print the pictures in large format and sell them (through agencies) without any problems. With other lenses, depending on the lens, I sometimes have to cut away or mask the edges or stop down the lens (because of field curvature) otherwise the pictures will not be accepted/sold.
[My experience is based on different camera models including the A7RIII, but not on the A7RIV. You can probably see the phenomenon better with a higher resolution camera. In any case, I've noticed several times that your assessment of some lenses has (slightly) changed after switching to the A7RIV. Perhaps that is the reason why I consider the midzone dip to be of absolutely zero practical relevance in the better copies of the 50mm ZA.]
