Search found 40 matches

by apt403
Wed Jun 26, 2019 2:11 pm
Forum: Equipment Discussions
Topic: Modding a Nikon MM-11
Replies: 17
Views: 1776

your last link is broken (for me) is this the publication you were referring to? https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-14-16652 Yes! Thanks for pointing that out. Here are a few more links on the technique, in the interest of keeping these posts informationally dense: https://dash...
by apt403
Wed Jun 26, 2019 2:08 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Cymatics (sound wave visualized with water)
Replies: 12
Views: 1791

10-4 - I may have to reach out to Linden Gledhill and ask for his permission, this is a very interesting technique! On my calibrated monitor I prefer the original; on a smartphone screen I prefer the revised version, but the highlights are a little strong for my taste (note it's very, very subtle). ...
by apt403
Tue Jun 25, 2019 1:15 pm
Forum: Equipment Discussions
Topic: Modding a Nikon MM-11
Replies: 17
Views: 1776

Thanks for the links! Those are some impressive results; shells certainly aren't the easiest thing to capture, with all the nooks and crannies. I know what you mean re Agisoft - They seem to be the major player in this world, but I'd need to figure out how to monetize this hobby before I could justi...
by apt403
Sun Jun 23, 2019 10:06 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Cymatics (sound wave visualized with water)
Replies: 12
Views: 1791

Killer! Are the details of your rig documented anywhere? I'd love to check it out.
by apt403
Sun Jun 23, 2019 9:42 pm
Forum: Equipment Discussions
Topic: Modding a Nikon MM-11
Replies: 17
Views: 1776

Does the tilt stage also rotate? Totally out of left field, but it's been on my mind a lot lately: A macro-photogrammetry rig .... Yea, that's the concept. No, the tilt stage doesn't rotate but I have one that does. Just looking for something different to do. -JW: My previous post was vague - By ph...
by apt403
Wed Jun 19, 2019 11:16 pm
Forum: Equipment Discussions
Topic: Modding a Nikon MM-11
Replies: 17
Views: 1776

Does the tilt stage also rotate? Totally out of left field, but it's been on my mind a lot lately: A macro-photogrammetry rig. Turn down the lead screws on the tilt stage knobs to couple some NEMA 11 or 14 motors, drill and tap the stage + 3D print some brackets for mounting the steppers. Might need...
by apt403
Thu Jun 13, 2019 5:27 pm
Forum: Equipment Discussions
Topic: camera for fisher scope
Replies: 1
Views: 567

I can't comment on that particular scope, but here's a link that might help a bit with something: https://www.microscopyu.com/tutorials/matching-camera-to-microscope-resolution I'd recommend against a FF camera - A used micro 4/3 or APS-C body would be preferable. Most objectives aren't designed for...
by apt403
Wed Jun 12, 2019 9:46 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Burr
Replies: 6
Views: 969

Nice result! Saw this on the granite surface plate thread, thanks for posting! There aren't very many example images of Amscope finites besides the famous 4x. What was your lighting setup for this shot?
by apt403
Tue Jun 11, 2019 12:08 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Canon DPP4 gives extra pixels on raw conversion?
Replies: 6
Views: 2359

Total shot in the dark without having access to the files, but perhaps it's some weirdness going on with the way DPP4 handles RAW demosaicing, specifically where it chooses to crop the edges. I'm seeing 5472 × 3648 quoted as the max effective resolution for the 7D Mk II from various sources, smaller...
by apt403
Tue Jun 11, 2019 11:28 am
Forum: Equipment Discussions
Topic: June Electronics Swap - Eureka!
Replies: 10
Views: 970

Oh, gotcha. Literally the panning the image sensor. Excited to see your build as it progresses! I've been curious about that sort of setup since I saw Lou's work w/ the Ultra Micro Nikkors.

What lens/sensor combos are you planning on using?
by apt403
Mon Jun 10, 2019 10:29 pm
Forum: Equipment Discussions
Topic: June Electronics Swap - Eureka!
Replies: 10
Views: 970

Nice score! Wish I was still in that neck of the woods for events like that.

What do you mean by "sensor-pan" stack and stitch?
by apt403
Fri Jun 07, 2019 7:06 pm
Forum: Equipment Discussions
Topic: Automated XYZR Stage, The R Component
Replies: 25
Views: 2541

Thanks for sharing; directly coupling the specimen holder to a stepper motor is an awesome idea! I've been scratching my head on how best to go about adding a rotational axis, and this looks like a pretty perfect solution - about as low weight as one could get. Looks like a ~64oz-in motor, based on ...
by apt403
Fri Jun 07, 2019 3:42 pm
Forum: Equipment Discussions
Topic: Advice for beginner photographing small artwork
Replies: 12
Views: 1107

Regarding telecentricity - is there a guide you know of showing how to convert a normal telephoto lens to one with a 0 degree field of view? This might be a really great effect, lending a sort of scalelessness to the images, although if I'm not mistaken, it will mean I'm shooting everything at 1:1 ...
by apt403
Fri Jun 07, 2019 9:21 am
Forum: Equipment Discussions
Topic: Advice for beginner photographing small artwork
Replies: 12
Views: 1107

Re: Advice for beginner photographing small artwork

I have a few questions I could use help with - macro is a new world for me. 1. Does anyone have experience combining panoramic techniques with focus stacking? Doing one or the other is easy, but doing both is tricky. Should I make the panoramas first, then stack? Or focus stack and then combine in ...
by apt403
Thu Jun 06, 2019 9:50 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Formica and Ajuga
Replies: 2
Views: 793

Thanks Rik! I agree, the ball-in-socket joint is one of my favorite features of these little guys. Reflecting after reading your post, I agree, 'seriously out-resolving' is overzealous. I guess my quest for giant prints is making me a little too sensitive to resolution. Before I started testing this...