Search found 3434 matches
- Thu Apr 18, 2024 7:16 am
- Forum: Equipment Discussions
- Topic: EL Nikkor+Fujifilm GFX
- Replies: 44
- Views: 937
Re: EL Nikkor+Fujifilm GFX
You may have answered this before, but why is it important to cover the full mag range with a single lens? Thanks for the question, Ray. In fact, I think I already answered, but I don't mind answering again; it even helps me remember, because my memory is not good, nor is my attention; I'm diagnose...
- Thu Apr 18, 2024 7:05 am
- Forum: Equipment Discussions
- Topic: Remedy for vibrations
- Replies: 42
- Views: 4167
Re: Remedy for vibrations
Thanks Ray; It's a great suggestion and more practical to implement. Something like? https://www.gorillatough.com/product/gorilla-double-sided-tape/ Yes, like that, but I've found Gorilla Tape products to be a bit aggressive, and often leave residues. Honestly I've been using tape I picked up from ...
- Thu Apr 18, 2024 6:23 am
- Forum: Equipment Discussions
- Topic: Remedy for vibrations
- Replies: 42
- Views: 4167
Re: Remedy for vibrations
Hello, unexpectedly I have two identical granite stones -+ A3, which were from a kitchen, about 30mm thick. They are perfectly flat, polished and are very heavy. I remembered that they can provide a good anti-vibration base to place my FLM ballhead. Do you suggest any quick and stable way to attach...
- Thu Apr 18, 2024 6:15 am
- Forum: Equipment Discussions
- Topic: EL Nikkor+Fujifilm GFX
- Replies: 44
- Views: 937
Re: EL Nikkor+Fujifilm GFX
You may have answered this before, but why is it important to cover the full mag range with a single lens?
- Wed Apr 17, 2024 7:03 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Small backlit stage
- Replies: 8
- Views: 242
Re: Small backlit stage
Out of interest, will you be using the backlight to help with background removal for coin photography? If so, I have a shared interest in the results you get! Yes, it is for ancient coins. I have a commission from a numismatic archaeologist at a Spanish university to replace/augment their current c...
- Sat Apr 13, 2024 11:36 am
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 29
- Views: 803
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
Well, I dropped one from waist height onto a bare concrete floor. I think it is de-centered now, but still produces pretty good images overall. The problem I saw with most of the bad lenses was "delam". I don't know if this happens when a lens is allowed to "fall or drop" but it's definitely bad ne...
- Sat Apr 13, 2024 8:28 am
- Forum: Equipment Discussions
- Topic: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
- Replies: 29
- Views: 803
Re: Exactly how fragile are the mitutoyo 10x 20x etc, or is it an enigma?
I purchased several Mittys, 5x, 10x, 20x, 50x, and every one of them had issues. The only good ones I've purchased were brand new. Not sure how much of a shock is required to damage them though. Some looked fine by inspection, but produced a poor image. Others had delam. I don't think the delam is d...
- Thu Apr 11, 2024 7:19 pm
- Forum: Equipment Discussions
- Topic: KEYENCE VH-Z75 what is it?
- Replies: 4
- Views: 177
Re: KEYENCE VH-Z75 what is it?
Looks like a nice microscope Z-stage, and decent XY-stage as well, and you get the objective as well! You'll need to research to find the manual as it is discontinued, but appears to be a 10:1 zoom lens with a high quality objective. Great score for $81+shipping.
- Wed Apr 10, 2024 11:47 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Small backlit stage
- Replies: 8
- Views: 242
Re: Small backlit stage
Thanks Alan! This one looks good at 75mm diameter. I'll see if I can find it from a US seller.
Ray
- Wed Apr 10, 2024 10:55 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Small backlit stage
- Replies: 8
- Views: 242
Re: Small backlit stage
- Wed Apr 10, 2024 7:55 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Small backlit stage
- Replies: 8
- Views: 242
Re: Small backlit stage
Has anyone seen a small backlit stage? Round is preferable, perhaps 100mm diameter. See if this might suit your purposes: https://aliexpress.ru/item/1005006132420668.html?sku_id=12000035904315191&spm=a2g2w.productlist.search_results.3.1a653f428LGVJP Looks very good! But I can't tell how large the i...
- Tue Apr 09, 2024 7:15 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Small backlit stage
- Replies: 8
- Views: 242
Small backlit stage
Has anyone seen a small backlit stage? Round is preferable, perhaps 100mm diameter.
Edited to add: I picked up a 6.5" round LED light from Amazon to try it out.
Edited to add: I picked up a 6.5" round LED light from Amazon to try it out.
- Mon Apr 08, 2024 1:46 pm
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: cross-sections of MLCCs (multi-layer ceramic capacitors)
- Replies: 12
- Views: 346
Re: cross-sections of MLCCs (multi-layer ceramic capacitors)
I did a lot of this kind of work in my last job at a MEMS startup (Cavendish Kinetics, now owned by Qorvo). Quality was one of the many hats I wore at that company. Most of the work was looking at failure analysis of the packaging, but occasionally I did some actual MEMS xsections, and I did some sl...
- Sat Apr 06, 2024 8:53 pm
- Forum: Equipment Discussions
- Topic: Remedy for vibrations
- Replies: 42
- Views: 4167
Re: Remedy for vibrations
Thank you! OK...camera and stage on one platform... make sense... Red = Sorbothane pads Will adding second layer of such pads further reduce the vibration? I see they have different "hardness-softness"/Durometer or whatever it is called and different diameters... so a lot of combinations are possib...
- Sat Apr 06, 2024 7:24 pm
- Forum: Equipment Discussions
- Topic: Remedy for vibrations
- Replies: 42
- Views: 4167
Re: Remedy for vibrations
Question is: will use of Sorbothane pads 2 times - once under the big board (lets say about 60-80 pounds total) and second time under the rail/stages (lets say 30-40 pounds) and head/camera (another 5-20 pounds) help with vibrations? If the red squares in your drawing are all sorbothane pads, then ...