Here are some attempts to simulate medium/large format by stitching.. I realized that I'm not very good at it as very large parts of the footage were so uneven that it had to be cut away. So I've ordered a robotic pano head now (Gigapan Epic Pro)...
Great rendering on #4 and 6 with the 50/1.4 John
I really like the B&W shots Ronnie
Nice shots, and really nice car Philippe
Really nice shots Luka. My favs, #1 and 2.
oldmiller wrote:
Great thread! I am amazed everytime I drop in, how many gorgeous pictures you guys show.
Adam, you will only experience focus shift, when you change the aperture after you have already focussed.
From f/2.8 on (stopping down I mean) I never found focus shift a problem. That meets what Lloyd Chambers says, that focus shift should usually be covered in depth of field shooting at f/2.8.
Any picture I take with apertures opened higher than f/2.8 I always focus at the actual aperture.
ZF85, f/2.8, D3:
Kind regards,
Bernd
Thanks guys, but I guess I wasn't explaining myself clearly. I understand focus shift, I just don't know how the 85 focus shift was designed. As in I don't know when it stops being a problem at distances I use. I get that at 1.4 there is no shift as it's a WYSIWYG situation at that aperture.
Bernd - if what you and Lloyd say is true, then that would make sense to what I've seen in this lens, but since I shoot at closer distances usually I'd suspect that I'm clear of focus shift by 3.2 which is where I usually feel that the lens sharpens up. If you've read my back posts with Charles.k you'd notice I mention it sharpens up for me at 3.2, so for me to be using it at 1.4 and then 3.2+ I get best results, as 1.4 doesn't have focus shift and 3.2 has enough DOF to beat it.. But again, since I've been using it without the z-finder for walk around, I've thought that the lens by design wasn't sharp till 3.2, because I totally forget about focus shift while I'm shooting, and I usually shoot at f/2 upwards. So in my mind, if at f/2 the lens isn't sharp why would it be sharp at 1.4 therefore I never really use it at f/1.4.... But it's just not sharp at f/2 due to focus shift. See what I mean?
Basically I forget all about focus shift when I'm out shooting, as I'm usually caught in the moment and instincts take over. Instincts that obviously don't account for focus shift
Anyway, I'll have to pay more attention to focus shift in the future while using this lens.
denoir wrote:
Nice pictures John, Philippe & Bernd.
Regarding focus shift and aperture - Canon cameras only stop down just before the shot is taken. You have to either pres the "DOF preview" button or set live view to movie mode (it sets automatically the correct aperture).
Of course, I think anyone who uses canon will at some point or another be forced to use the DOF preview button. Now with liveview, you have more options.
But I think my problem is, I'm forgetful, as the 85ZE isn't my most used ZE lens, so I'm never really thinking of focus shift when I mount it to my camera. Maybe I should print a little label for the barrel of the lens that says "Caution - focus shift"
I could just make it a z-finder only lens, that or remember to use it on 1.4 and pray I nail focus.
johnahill - Love the door, I shoot many doors myself while out. And the last picture on the first post of yours (the 5.6 shot) you're really starting to capture a very 3D sense, it's almost as if you can walk out onto that road.
philber - not sure what car that is, but you sure make it look pretty.
oldmiller - Actually just realized I didn't mention your shot. Fantastic capture, love the little kids hair!
Ronnie.Frown - Your second shot is fantastic! BTW, why is the car on an angle?
denoir - The second shot is spooky, the shallow DOF on the tree helps to create that kinda mood.
I also like the way the light falls on the corner of the building in the last shot, really gives the image depth.
Very nice! But look at the bokeh. The "cats eyes" are facing in some odd directions. I think you'll have much more even results across the individual frames if you stop down a bit. Of course DOF won't be as shallow, but on the other hand you'll get a rendering with extremely good sharpness and smooth bokeh, that more resembles a real LF camera.
Thanks very very much Adam. That is pretty sharp considering the eye is behind a veil.
adamdewilde wrote:
SKumar25 - Sure here you go, but I know what these questions are leading up to... a 85ZE purchase correct?
Also left the CA in so you guys could get an idea of the slight purple/green on the veil.
So as I said, I am quite surprised at it's sharpness, as this lens has been hit or miss for me. And I don't really regard it as sharp wide open, like my 100 MP ZE..
Hrmm I've not done testing but this is just a theory, could it be the lens preforms well at 1.4, and bad from 1.8-3.2 where at 3.2 it starts to pickup in the performance dept? Or could it be that focus shift has been getting the best of me between those apertures, since I use the lens at close to almost closest focusing distances. Where say most of you guys use it at medium to infinity so the shift may be from 2.8 onwards to f/4 (like a think philber and a handfull have suggested). Opinions on that, or is that just not possible? I only shoot, I don't really examine, but would love to know if someone has the answer.
Makten wrote:
Very nice! But look at the bokeh. The "cats eyes" are facing in some odd directions. I think you'll have much more even results across the individual frames if you stop down a bit. Of course DOF won't be as shallow, but on the other hand you'll get a rendering with extremely good sharpness and smooth bokeh, that more resembles a real LF camera.
Thanks. Yes, the problem with OOF highlights is that they change as you change the angle of the camera. When shooting an object relatively close - such as the tree, the sweep angle is pretty large. You also have to deal with various optical distortions. Fortunately the resolution is high enough that you can do software distortion correction and still have a high quality image in the end.
Here is a 1.2 Gigapixel shot (50 images). It's nothing special in terms of being an interesting photograph - just my standard test scene shot from my balcony. I think however I got a fair simulation of an LF camera look at least as far as the DOF goes:
Lovely pictures guys. Was wondering how I resize my pictures to post here? They are Large JPEGS from a 5D MKII and when I tried to download a shot to upload it said it was too large. Using aperture 3 at the moment.
bigkidneys:
Maximum filesize is 350 Kb (and 800 x 800 pixels I think) so you have to size your image to 800 on the widest side and the lower jpeg quality until file size is less than 350 kb
joakim wrote:
bigkidneys:
Maximum filesize is 350 Kb (and 800 x 800 pixels I think) so you have to size your image to 800 on the widest side and the lower jpeg quality until file size is less than 350 kb
Thanks but not sure how to do that. In aperture 3? Just started using aperture 3 2 days ago so very new to it.
bigkidneys wrote:
Thanks but not sure how to do that. In aperture 3? Just started using aperture 3 2 days ago so very new to it.
Take any picture, choose from the menu bar "File" -> "Export" -> "Version".
Another window will open and you will find the "export preset" on the bottom of that window. Mouse-click the current "export preset" and a list with presets to choose from will pop up. At the bottom choose "edit".
If there is no preset matching what you want or want to modify, create a new one by clicking on the + icon.
