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  1. 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.
  2. MGrayson

    New Hasselblad XCD 20-35/3.2-4.5

    There's been some rumors of an imminent release of a wide zoom (20-35/3.2-4.5) for the Hasselblad X system. A picture that looks fairly believable was posted, along with some data. I took the liberty of scaling an image of the XCD 25/2.5 (which weighs 592g) to match the zoom. It looks larger and...
  3. MGrayson

    16 bit vs. 14 bit - what's the difference?

    Yes, yes. Two bits. Now that that's out of the way... There's a lot of concern about capturing 14 bits vs. 16 bits. A lot of the discussion is about the resolution of the AD converters and is there anything but noise in the last two bits. Since I don't know anything about the engineering aspects...
  4. MGrayson

    LR Enhance

    I keep forgetting that LR Enhance exists. @Paul2660 mentioned it in another thread, so I thought I'd take a look. Let's see what it does with a file that has some sharp bits and some not-so-sharp bits. I posted this recently, but here it is again as our test subject. I didn't apply any...
  5. MGrayson

    Tripod Leveling with Legs

    This may be obvious to everybody but me, so if your response is "Well, duh!" then I apologize. The thread on "Aging photographers and weight" got me thinking about my favorite tripod head - an Acratech Panorama. I like it precisely because it is not a ballhead. Once set up, the camera is always...
  6. MGrayson

    Hasselblad's aversion to red dots

    I just spent an hour sticking little triangles onto the barrels of all my XCD lenses and adapters. Why? Because Hasselblad refuses to mark how to orient the lens for camera attachment without removing the rear cap, rotating the lens, and squinting until the tiny red dot shows up. The V lenses at...
  7. MGrayson

    Hasselblad XCD 28P Focus Shift

    I don't want to clutter the Fun With ... thread, so here is a test (performed twice!) that demonstrates focus shift on the XCD 28P. I knew that lens align would come in handy one day.., This is focused (AF and manually checked with zoom) wide open - f/4. Note the Moiré on the lettering...
  8. MGrayson

    Mirrors, Viewfinders, Sensors, and Orientation

    Good Morning, I'm moving a discussion of mirrors and image orientation from Behind the Scenes to its own thread because I feel like I've pulled that miraculous place too much off topic. I'll have the usual verbiage and pictures (computer drawn, alas, not photography) later. John, You are...
  9. MGrayson

    Phocus 3.8 problem importing - Solved

    If I copy .3FR files to my computer, they show up in Photos 3.8. When I try to import them and convert to .FFF files, I get the dialog box, but nothing happens. The thumbnails, when selected get outline boxes, but not as thick as the 3.7.6 outlines, suggesting that they are not "fully" selected...
  10. MGrayson

    More on Diffraction - Why is it There?

    This is a pure lecture post. If I were modern, I'd have a YouTube channel and put it there. But I'm old fashioned and like pictures. I want to look at what happens inside your camera at time steps of a few trillionths of a second. I mean, who wouldn't? The time it takes light to leave the rear...
  11. MGrayson

    Diffraction and Sensor Size

    Playing around with old lenses got me thinking about diffraction. Why? Because we often need to use f/11. When I was shooting a tech cam with a large sensor, f/11 ws kind of standard. And then there's the whole f/64 thing with large format. But calculations of diffraction blur show that the...
  12. MGrayson

    Positive feedback for @JoelM

    Very easy transaction. Lens arrived quickly and in perfect shape. All good! Matt
  13. MGrayson

    Perspective and Distortion

    The 2014 MF Image thread was branching off into the issues of the perception of distortion that comes (largely) from wide-angle and shifted lenses. So here's a place to discuss it. I'll prepare a short exposition on the subject, but right now, I'll just leave the guiding principle: Every photo...
  14. MGrayson

    Fun with MF images 2024

    Opposite of Fun with MF Cameras. My X2D fired as it (and I) hit the ground. Lens shade and mounting plate got a bit scratched up. I'm gonna hurt a LOT tomorrow. That's what I get for abandoning Soup for a few days. This is the kind of nonsense I was up to. XCD 90/3.2 in bad light. Should have...
  15. MGrayson

    Hasselblad Phocus won't open a CFe card from an X2D

    Dear Mods, I asked this question in the Hasselblad X1D/X2D forum. If posting here violates crossposting rules, feel free to delete and accept my apologies. M1 MacBook Pro 14", OS 13.5.2, Phocus 3.7.5, SanDisk "Extreme PRO" CFe 256GB. I get no drop-down triangle in the left column so I can't...
  16. MGrayson

    The Silicon Wafer Test Chart

    It's hard to test a 300mm lens indoors. I mean, pixel pitches being what they are, you need an extremely detailed test chart or an extremely long hallway. But if you want to test at home and want detail down to ridiculous levels, get a silicon wafer from the 1980's (available inexpensively on...
  17. MGrayson

    2 Second Delay vs. IBIS - a test of the X2D on a tripod

    Since the X2D currently has no wired shutter release, and the phone apps are unpopular as a replacement, I wanted to see if IBIS made any difference to "2 second delay vs. mashing the shutter button". For many images, split second timing isn't necessary, but for others it is. Since a remote...
  18. MGrayson

    Fun with MF images 2023

    Indeed. I could clone out the ducks....
  19. MGrayson

    Hasselblad X2D and Leica S3 - Update 2: A difficult focus

    After all the testing is done, we have to live with an actual system and take photographs in whatever way we prefer. I rarely use a tripod, usually shoot very wide, and wait for a photo to jump out, grab me by the lapels, and shout "take me!" in my face. Sometimes that means walking back 100...
  20. MGrayson

    Solved: A lens that will AF on the X1D but won't on the X2D

    I have 5 lenses that should autofocus on the X2D - three XCD and 2 HC. All of them AF on my X1D-50c. But on the X2D, only four of them AF. The XCD 45/3.5 gets a "Lens supports MF only" error every time I try to engage AF. Otherwise, it works fine. But that's a big "otherwise". Anyone seen...
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