Search found 25 matches

by Daniel_Han
Mon Jan 08, 2018 11:34 pm
Forum: Equipment Discussions
Topic: 4X Objective Test Part Two - High End Objectives
Replies: 29
Views: 4694

Really like the sturdy setup for the M42 tubes using the thorlabs sm2rc!
by Daniel_Han
Fri Dec 29, 2017 7:36 pm
Forum: Equipment Discussions
Topic: Looking for Thread Adapters
Replies: 5
Views: 1018

Daniel, Quoting a seven-year-old post : "As I purchased them, the Noga gauge stands each came with a tip designed for holding a gauge used by machinists but of little use in my application. However, unscrewing this tip revealed a hole with M6 threads. Inserting an M6 to 1/4-20" thread adapter gave ...
by Daniel_Han
Fri Dec 29, 2017 8:43 am
Forum: Equipment Discussions
Topic: Looking for Thread Adapters
Replies: 5
Views: 1018

Looking for Thread Adapters

Hi everyone! I'm looking for a specific type of thread adapter.: M6 to 1/4'' male to male, M4 to 1/4'' would do, but I prefer the former. This is a weird thing to ask for, as two different screw standards exist here. I looked all over the web and did find a site offering the adapter, but unfortunate...
by Daniel_Han
Fri Dec 29, 2017 8:22 am
Forum: Equipment Discussions
Topic: Where to Get Optical Breadboards?
Replies: 31
Views: 5260

Best place would be either https://www.edmundoptics.com/ or https://www.thorlabs.com/index.cfm Thorlabs offers one of the best in class honeycomb breadboards, the Nexus breadboard, which I stand by and highly recommend -- if one can justify the cost. Even their aluminium breadboards are rather expen...
by Daniel_Han
Mon Aug 07, 2017 7:12 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Thanks for your insight and help Rik! I'll try explore this problem further and see what's the problem. I decided to look into my Dmap stack, and found some interesting problems. http://www.photomacrography.net/forum/userpix/5432_1_2.jpg http://www.photomacrography.net/forum/userpix/5432_2_2.jpg In ...
by Daniel_Han
Sun Aug 06, 2017 5:32 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Daniel, have you had a chance to do that test I suggested HERE (previous page of this topic), checking for apparent motion of features inside the crystal? --Rik Hey Rik! I followed the steps you provided and the checked the "Show as Adjusted" box, scrolled through the entire stack with arrow keys a...
by Daniel_Han
Wed Aug 02, 2017 9:39 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Daniel, have you had a chance to do that test I suggested HERE (previous page of this topic), checking for apparent motion of features inside the crystal? --Rik Yep, surely! It will probably have to be next week though. I was silly enough to run through the rain and not shower afterwards, now I hav...
by Daniel_Han
Tue Aug 01, 2017 6:03 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Awesome video Peter! Yep, I think diffusion is important in my case as well. My post pretty much illustrates a lot of rookie mistakes :P It's a combination of different problems! I have some more crystals coming in this month, worth to try some of the mentioned diffusion methods. This Herk is too bi...
by Daniel_Han
Tue Aug 01, 2017 6:00 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

My 85mm f/2.8 Micro-Nikkor PC-E does have an effective aperture at different focus distances, I think I pointed it out somewhere above -- I could be wrong. This means the iris mechanism effectively moves with focusing I guess, which could lead to some issues. Perhaps I'll try with PN, configure it f...
by Daniel_Han
Fri Jul 28, 2017 4:07 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

I tried Dmap with my 124 image stack, and the results are actually way better! The texture in the herk can be seen easily. Smudging still exists, but at this point, it's just my carpet. I'm going to get another stack going tomorrow, with various diffusers I have. http://www.photomacrography.net/foru...
by Daniel_Han
Thu Jul 27, 2017 6:45 pm
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Exposure settings: Shutter speed was 1/250, mirror-lockup mode, and electronic shutter enabled. Aperture was at f/8. Equivalent to 9-9.5, since it's a macro lens. I went 16 and 22, results were a bit unsatisfactory. I find the optimum to be around f/8. I should try tetherting and other methods menti...
by Daniel_Han
Thu Jul 27, 2017 6:35 pm
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Thanks! Diffusion! Yes, I should try more diffusion. My strobes were not diffused at all, the only diffusion is that little lighttent. My stacking method is using a rail, which I forgot to mention. The focus ring of the lens is untouched. I use an RRS macro rail. I should have included a photo of my...
by Daniel_Han
Thu Jul 27, 2017 7:47 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

https://www.flickr.com/photos/107963674 ... 428433593/

Macroscophic Solutions on Flickr has a couple photographs of Herkimers, and they look really nice and clear. It looks like only one exposure to me?
by Daniel_Han
Thu Jul 27, 2017 7:34 am
Forum: Equipment Discussions
Topic: Need help/tips/recommendations for photographing crystals
Replies: 27
Views: 3493

Need help/tips/recommendations for photographing crystals

Hello everyone! Yesterday was my 23rd birthday and the Herkimer Diamond I purchased on Ebay 2 weeks ago finally arrived, shipped from the US! I live in Australia. I arranged my usual setup for photographing crystals, and encountered some problems when stacking the final results. I made 3 attempts an...
by Daniel_Han
Wed Jul 05, 2017 8:25 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: 2017 "High Magnification" Macro Setup (Automated)
Replies: 23
Views: 15407

I see lots of things from the kitchen, neat setup :) Lovely!