carstenw wrote:
I had an odd thing happen today. I was making some test shots with the 50MP, and found that I couldn't focus where I wanted. I tried the center of the view, no problem. Tried again a bit lower and to the left, and again missed, by quite a bit. I tried both with and without the focus point assistance, but I just couldn't focus in that part of the photo. Very weird, and I can't explain it. I tried in other parts of the image, no problem. Just for some reason, for this one composition I couldn't get the focus right.
Has anyone experienced anything like that? What could it be, field curvature? It wasn't that far out in the field, just perhaps at the 1/3, 1/3 mark, from the bottom left. I was shooting wide open, Nikon D3....Show more →
I have a weird picture from 50MP, but it was shot through a windshield, which may have contributed to that effect. Here is a 100% off center crop from a shot with a focal plane somewhere near the traffic lights. Notice that the traffic lights are more or less in focus, the building right behind is out of focus (shot at f/4.5), but the building in the back appears sharp again...
wayne seltzer wrote:
Samuli's has posted shots which show the faster focus rolloff of the 50/1.4 vs.50MP which gives you better subject isolation and 3-d. This was after I mentioned this behavior to him that I had seen with my copies. The other week I posted forest landscape shots which showed this with both 50's and also between both my 35/2 and C/Y 35/1.4 in the 35 thread.
Vincent, thanks for the shots, which show the effect I am referring to. I cannot compare directly to my 50 MP shot though, since it looks like you were a lot closer to your subject than I to mine.
Wayne, do you know roughly where I can find Samuli's and your comparison shots? I would love to take a look, before deciding whether or not to add a 50/1.4.
Very very nice BW work Vallejo, for me no 3 and 4 does the trick. This despite the sky in 4 is a bit intrusive, but still impressive. Is that PP/heavy recovery or what's with the grain?
Tks wfrank and carsten...the image was a HDR,the conversion was done in Nik's Silver Efex Pro with a modified Wet Rocks preset, that added the grain. It looks nice on the print, sometimes not so much on the screen...
André
www.vallejo.photoshelter.com
carstenw wrote:
50MP wide open. This lens does seem to carry a lot of depth of field for its focal length.
About a stop more in apparent DOF compared to the 50 Planar at the same aperture. Samuli did some tests back in the day when this thread was > 50% technical discussions
The 100 MP is actually no different. If you compare it to say the Canon 100/2.8 Macro at f/2.8 you'll see that the Zeiss appears to have a larger DOF.
This of course has to do with the type of sharpness-to-blur transition. Usually highly corrected lenses have a sharp transition, but Zeiss seems to have done some voodo with the Makro Planars.
Pace of this thread is picking up quite a bit. 300 pages will be in 10 days or something.
Thank you very much folks for your comment.
Lars - Wonderful portraits from street. Bird selling child shot is quite powerful.
Carsten - Last time Samli was around, he mentioned about 50MP's filed curvature at infinity. I don't think that is related to Carsten's focusing challenge. Could that be oil on view finder ?
Really liking the shot of wood chopper ? Great color, texture. Bokeh got a bit oversharpened ( tree on left area caught my attention ) ?
Vincent - wonderful works with 50 planar Love that towing truck (?) shot, especially the 1.4 shot.
prosep - nice flower shot
OnAnt - Great street shots with 21. Wonderful lighting on all of them. I really like the way how lighting is accentuating subject in all shots. Last shot is gorgeous capture of joy, laughter.
Dubaiphil - quite a detail on that shot. Nice capture of boats on the water
steveu - Powerful portrait with 35 f1.4. Color looks great.
Alkanphel - Lovely b/w macro. Beautiful capture of dew
nickson - nice b/w tone on the first shot
Mirek - could it be heat dissipating from building facade?
vallejo - Stunnin B/W. Love the first two shots. Man on the door step with a dog, that is a great moment you captured.
Uzay - Very nice composition. Stepping shelves and cat on the sidewalk, somehow creates a diagonal connection. Was the focus on door knob ?
johnahill - I like the deep sky and field of flowers.
kururu - Beautiful shots. Great color. Love them all, but in particular, #4 momiji leaf shot is just super !!
One of the crazy thing in NYC. Once bicycles get vandalized, parts get stolen, people just leave them on the side walk letting them decay. I just don't get it. Thinking about the girl selling birds to free them from Lars's shot. So, anyway, this is yet another abused bike portrait.
