Search found 17 matches
- Mon Sep 28, 2015 6:47 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
What a nice setup! The only point I dislike is the camera holder that will prevent to use the optical viewfinder, for moderate magnification it's still very useful. I am trying out some "polarizing gel" filters..... Just one polarizer will be useful only in some cases, the parts of the subject that...
- Sat Sep 26, 2015 8:07 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
Impressive design ! I like the CAMERA ! You mentioned polarizing filters (not shown) - how are you using them ? Thanks, Saul I am trying out some "polarizing gel" filters, to be used in front of the lights, rather than the standard "polarizing filter on the lens". It seems (for me now) to be a "tri...
- Sat Sep 26, 2015 7:58 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
About the camera macro focus (RSS Macro Focuser). (Really Right Stuff) I could do better here. This macro focusing slider has some problems.... For precise detail work, it becomes loose and floppy between the time you loosen the knob, adjust, and re-tighten. It does this even worse when mounted vert...
- Sat Sep 26, 2015 7:33 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
- Sat Sep 26, 2015 6:57 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
The LED panels.... I bought blank circuit boards** , and soldered (many :shock: ) individual (5600k) LEDs to them, then epoxied the boards to aluminum heatsinks (they barely get hot).....and created ways to mount them to small adjustable ball heads. Giottos makes some good ball heads for about $17 a...
- Sat Sep 26, 2015 6:46 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: My macro rig, beginner, 1:1 lens
- Replies: 9
- Views: 3391
My macro rig, beginner, 1:1 lens
I have spent some time gathering this setup, mostly Really Right Stuff, and eBay parts gathering (US local), only 2 parts from Asia. (no China) At the moment, I am only photographing around 1:1 (lens: Tokina 100 f2.8, camera: nik 7100) Soon, I'll get closer magnification (bellows, etc.) PICS.... I t...
- Sat Sep 26, 2015 3:00 pm
- Forum: Equipment Discussions
- Topic: Hot mirror for light: any experience?
- Replies: 19
- Views: 2585
I've gathered a lot of information on LED dimming power supplies, from browsing some of the many aquarium forums on the net. They often build their own LED lighting fixtures, and tweak them to no end (fish and coral nerds). There, you will find some real-world usage of various dimming techniques, an...
- Sun Sep 20, 2015 6:01 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Move focus ring or camera, when taking stacks?
- Replies: 5
- Views: 2040
Think about the big picture..... Moving the focus ring does change the depth-of-field and other attributes, in that the internal lens elements change while doing-so. Moving the subject often changes the lighting (by a small amount, depends). Moving the camera body, changes none of either. (ok, it do...
- Sun Sep 20, 2015 5:46 pm
- Forum: Equipment Discussions
- Topic: Hot mirror for light: any experience?
- Replies: 19
- Views: 2585
I'm not clear.....are you worried about heat in the lamp itself, or heat gathered on the thing (subject) you are photographing ? During continuous lighting, both are an issue, and can be quite separate issues. Both can be avoided by reducing light energy (intensity)....up to the point just before ta...
- Sun Sep 20, 2015 5:12 pm
- Forum: Equipment Discussions
- Topic: Kohzu Goniometer Stage table / 70mm x 70mm (Knob)
- Replies: 17
- Views: 3159
Not ideal, and if you can't find another solution, you could epoxy glue-on some knobs that are slightly over-sized. It doesn't matter if they are not centered absolutely, after gluing.....you're just turning them.. This would be a last resort though. Or...if you know the shaft diameter, completely f...
- Sat Jul 11, 2015 8:04 am
- Forum: Equipment Discussions
- Topic: Plastic Shield over LEDs ??
- Replies: 2
- Views: 971
- Sat Jul 11, 2015 12:03 am
- Forum: Equipment Discussions
- Topic: Butt joint strength: epoxy versus screw
- Replies: 29
- Views: 15601
At my workplace, we often use a 3M product called "Scotch-Weld" urethane adhesive. It's a two-part product, and comes in manageable dual cartridges applied with their hand-held squeeze gun, with replaceable mixing tips. 3 minutes (or so) working time. (it hardens fast) We tried butt-joining two 1/8 ...
- Fri Jul 10, 2015 11:22 pm
- Forum: Equipment Discussions
- Topic: Plastic Shield over LEDs ??
- Replies: 2
- Views: 971
Plastic Shield over LEDs ??
I have made some flat LED lights, in a grid pattern and mounted to a heatsink.....about 4x8 inches size. I use these like mini-panel lights. I want to put a screw-mounted plastic shield over the (5700K) LED's, to protect them, and to give me a surface to place my choice of temporary vellum-type pape...
- Sat Jun 20, 2015 11:58 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Hand-held lighting....
- Replies: 5
- Views: 2043
- Sat Jun 20, 2015 11:48 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Hand-held lighting....
- Replies: 5
- Views: 2043
Yes, lighting surely depends on your wants and needs (goals). Entomologists may require overall diffuse light. Bendable "goose-neck" light mounts do work well for "positioning", but sometimes extra length is needed. I can imagine that in some situations a length limitation might lead some to conclud...