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  1. MGrayson

    Fun with MF images 2025

    Sometimes, content-aware fill (or its intelligent descendent) is your friend.
  2. MGrayson

    Fun with MF images 2025

    Pre-dawn sky over the park. X2D, XCD 20-35 zoom @20mm. I don't have good luck with zooms, but this one seems ok. I shoot four focal lengths in this range, and I'm getting lazy. Matt
  3. MGrayson

    Simulating Tilt with a Focus Stack

    BTW, to first order, the masking proceeds linearly. Take first and last frames where something you want in focus is sharp and make equal steps in mask height across the stacks. If you think of moving the back and holding the lens fixed, then the stacked images are equally spaced inside the...
  4. MGrayson

    Simulating Tilt with a Focus Stack

    Yeah, it was just one try and with two different lenses. I'd have to get more serious to really test the idea. It just seems like too much work, though I'm embarrassed to say that after what you've accomplished. My shooting style is generally to wait for an image to grab me. Whenever I set up...
  5. MGrayson

    Simulating Tilt with a Focus Stack

    Soup has gone to live with my older daughter (same city, same subway line). He is originally her cat. I'm not sure if and when he will return, so I'm thinking of selling all my camera equipment.
  6. MGrayson

    Simulating Tilt with a Focus Stack

    Here are (some of) the images. X2D, XCD 25/2.5 @ f/4. I forgot to crop some of the edge artifacts from changing magnification. Close focus Far focus Everything in focus stack processed in PS Simulated tilt image. Plane of focus goes from top of metabones case to bottom of piano body...
  7. MGrayson

    Simulating Tilt with a Focus Stack

    And a tripod :D. I took a 50 image stack - 10 gigabytes. Made a long post about it above, and then deleted it. In the end, a single frame with a Pentax 645 35mm on a tilt-shift adapter did a better job in one frame. As long as T/S lenses are available, we "expensive rigid camera users" (I...
  8. MGrayson

    Simulating Tilt with a Focus Stack

    Never mind. It was a stupid idea. Use a T/S adapter if you don't have a camera with movements! I mean, it sort of works to take slices of a focus stack's worth of frames, but it's much easier and you get better results with the real thing.
  9. MGrayson

    Long live technical cameras and digital view cameras!

    Right. You mask out everything that isn't close to your red dashed line. That gives a tilted slice of the final image in focus, but not everything.
  10. MGrayson

    Long live technical cameras and digital view cameras!

    Oh, your work shows the necessity of complex movements quite clearly. I think my idea is better suited to landscapes. I was thinking of doing the stack aligning in PS (or any stacker software) to correct for magnification changes and then doing the masking manually. It would literally be...
  11. MGrayson

    Long live technical cameras and digital view cameras!

    It *is* of course, possible to use the OOF parts of the image stack. I don't know of software that does it, and it would be a pain to do it by hand, but all the information is there. You're capturing the full light field in a slab of the camera's interior, so slicing it at a tilt should (in...
  12. MGrayson

    Long live technical cameras and digital view cameras!

    I wrote this up elsewhere on this site with pictures! (And have a youtube video explaining it), but the simplest tilt explanation I can think of is 1) To focus far away, the sensor has to be closer to the lens. For close focus, the sensor has to be further from the lens. Demonstrate with...
  13. MGrayson

    5300 dpi Plustek 120 Scanner in November

    6x7 film. And just to handle film flatness. Probably not necessary? And nothing is as tedious as dust removal in post, so it's not a huge issue. :eek:
  14. MGrayson

    Long live technical cameras and digital view cameras!

    Have SK lenses dropped drastically in price? The 35XL was maybe the most affordable, but I thought the 43XL and 60XL were close to 5 figures. I agree about the banding, of course.
  15. MGrayson

    Long live technical cameras and digital view cameras!

    I have three problems with tech cams: lens cost, lens availability, and lens cost. If SK and Rodie lenses were comparable to XCD or even Leica APO, it would be tempting. I’d get some FF back - probably some 60MP CCD… But then the car screeches to a halt. SK 43XL? Forget it. Roadie 28? Hahahaha...
  16. MGrayson

    5300 dpi Plustek 120 Scanner in November

    Mine is *slightly* off and it isn't adjustable. VERY frustrating. Putting the film in upside down improves it, but I think it could be better. Using a tripod, macro lens, and focus stacking is more reliable, if more trouble.
  17. MGrayson

    Hasselblad Composer Tool

    I was going to post this yesterday, but felt I'd done enough thread-jacking. But having made the pictures, I couldn't resist. :rolleyes:
  18. MGrayson

    Hasselblad Composer Tool

    Here's a very simple example of the kind of thing I was thinking about. Your typical long exposure of a ... dark gray rectangular cloud moving across the sky. This is a simple average of a bunch of short exposures with gaps. Here's the same thing, but with more weight on the central frames...
  19. MGrayson

    Hasselblad Composer Tool

    Or you can just add them all up first. I always forget that that's an option :) But if you have, say, only 16-bit frame buffers, then you have to use the formula you've given.
  20. MGrayson

    Hasselblad Composer Tool

    Yep, that was exactly it. I still don't know what you can do to really fix it other than morphing. Or I'm sure Hasselblad would give a zero delay setting if we asked them nicely, right? 🤣
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