Search found 11 matches

by Bugeyes
Thu Dec 10, 2020 10:00 pm
Forum: Equipment Discussions
Topic: Macroscopic Solutions Mitutoyo Diffuser
Replies: 7
Views: 1716

Re: Macroscopic Solutions Mitutoyo Diffuser

Makes perfect sense, now. Thanks for the info and link. Now, how can I modify it to ..........? Half the fun of this hobby is finding ways to repurpose things for it. Especially things just lying around.
by Bugeyes
Thu Dec 10, 2020 5:58 pm
Forum: Equipment Discussions
Topic: Macroscopic Solutions Mitutoyo Diffuser
Replies: 7
Views: 1716

Re: Macroscopic Solutions Mitutoyo Diffuser

I have these, and I agree with jnh. It's too dense and not concave enough. It absorbs 4 stops of light at least and light exiting the underside is not broad enough for Mitty working distances, IMO. It's made of robust material (some kind of spun fiber), though. There's about .75cm or so of diffuser ...
by Bugeyes
Fri Nov 27, 2020 1:11 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Laser aiming and focus in photomacrography
Replies: 53
Views: 56937

Re: Laser aiming and focus in photomacrography

Reply for Chris S., et. al. Thanks for the reply. The laser is a "Pinty Hunting Rifle Green Laser Sight Dot Scope Adjustable with Mounts" in "Sports & Outdoors › Sports & Fitness › Airsoft & Paintball › Airsoft › Sights & Optics › Gun Scopes" on Amazon. (It even has a remote switch to turn if on/off...
by Bugeyes
Thu Nov 26, 2020 9:15 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Laser aiming and focus in photomacrography
Replies: 53
Views: 56937

Re: Laser aiming and focus in photomacrography

I built one of these using "redneck engineering." The source is a cheap ($25) green laser for BB-guns, air-guns, etc. The rest is pure redneck engineering. It is held in place via the hot shoe on the camera. The laser sight has an on/off button on its top. Took about 30 minutes to build and properly...
by Bugeyes
Wed Jan 02, 2019 7:30 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Microscope EPI dual illumination (flash and halogen)
Replies: 8
Views: 4988

Update to this project. No real advance made. As most of you predicted, the loss of light is just too great, since it had to pass through too many splitters and too much glass. Hardware-wise, it made a neat package but really was impractical. I was unable to get an approximation to Kohler illuminati...
by Bugeyes
Sun Nov 25, 2018 12:03 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Microscope EPI dual illumination (flash and halogen)
Replies: 8
Views: 4988

Microscope EPI dual illumination (flash and halogen)

I've searched the forums looking for a similar question but have been unsuccessful, so I'm posting this idea for feedback and critique. Apologies if this has been already covered in some post. I have an EPI (reflected light) microscope with a 30W bulb and I want to use flash for my stacking while, p...
by Bugeyes
Mon Oct 24, 2016 12:08 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Normandy sand
Replies: 4
Views: 966

Thank you for the kind complement, Chris. You are correct. When I was visiting each beach I simply walked to a point where dry sand was merging into wet sand and scooped up some of the damp sand, as I did not want to muddy my shoes. A 10-meter walk further down the beach would have probably changed ...
by Bugeyes
Sun Oct 23, 2016 4:45 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Normandy sand
Replies: 4
Views: 966

Normandy sand

When viewed at 7.5x magnification, plain old sand shows some interesting personality. These stacks are plain, brown beach sand magnified 7.5x times. The sand happens to be from the five D-Day (June 6, 1944) landing beaches on the Normandy coast that were coded as "Utah", "Omaha", "Gold", "Juno", and...
by Bugeyes
Thu Nov 20, 2014 5:54 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: ZereneStacker+Stackshot - avoiding backlash determination
Replies: 4
Views: 2227

I see now why the "simple" method will work. Assuming the forward backlash equals the rearward backlash (a reasonable assumption), they will cancel each other out when using the "simple" method. The x-position after the backward return before shooting is actually less than what ZS thinks (in its pos...
by Bugeyes
Thu Nov 20, 2014 5:02 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: ZereneStacker+Stackshot - avoiding backlash determination
Replies: 4
Views: 2227

Yes I understand that method. However, there would be backlash going backward which would "offset" whatever amount you back up before the start point. In that case, the (position + prerun) amount would not necessarily place you at the 'start' position. The prerun will "remove" any forward backlash b...
by Bugeyes
Thu Nov 20, 2014 1:58 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: ZereneStacker+Stackshot - avoiding backlash determination
Replies: 4
Views: 2227

ZereneStacker+Stackshot - avoiding backlash determination

Question: Would the following stack shooting procedures avoid the need for backlash determination when using ZS and a Stackshot? First, set the backlash value to zero. Find the starting focus position in the usual way, but then back up 0.15 mm, a value certain to be greater than half the actual back...