Search found 900 matches

by dolmadis
Mon Feb 19, 2024 1:46 am
Forum: Equipment Discussions
Topic: Nikon Series S fine focus problems
Replies: 14
Views: 3450

Re: Nikon Series S fine focus problems

Hi sgd3d.co.uk SGD, Unit 20, Pottery Court, Bulwell, Nottingham, NG6 8YN One printed locally by a friend did not fit the brass hub on which the gear is mounted until it was modified by the bureau. "inner diameter modified to be smooth and concentric at 24.2mm (0.1mm clearance)." Do check your measur...
by dolmadis
Sun Dec 31, 2023 12:33 pm
Forum: General Discussion Forum and Community Announcements
Topic: A classic revised: LEFKOWITZ, L: The Manual of Close-Up and Macro Photography, Vol. I + Vol. II
Replies: 7
Views: 819

Re: A classic revised: LEFKOWITZ, L: The Manual of Close-Up and Macro Photography, Vol. I + Vol. II

Sadly even following Rik’s tip and on the Amazon US site not available to me in the uk.

Can’t even find any reference to publisher on a Google search to try to go direct.

If anyone in the uk can get a purchase link please do update this thread.

Thanks , John
by dolmadis
Tue Dec 19, 2023 11:55 am
Forum: Equipment Discussions
Topic: Lasertec 5x 0.25 HR Objective on eBay
Replies: 42
Views: 5981

Re: Lasertec 5x 0.25 HR Objective on eBay

Hi Robert

Glad to hear that your fight back is going well and on behalf of myself and others thanks for your help on here and by email. Best , John
by dolmadis
Sun Feb 19, 2023 7:29 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: What am I doing wrong - see my post on the Macro Forum
Replies: 17
Views: 2412

Re: What am I doing wrong - see my post on the Macro Forum

Hi Rik, maybe something like that ( with output frequency 1Hz ) ? https://www.ebay.com/itm/225032503224?hash=item3464fb7fb8:g:p7QAAOSwRQlbCY5h&amdata=enc%3AAQAHAAABAEldCOW06D6dnzIz8vbG7Odv%2BfVlAZnuKIhWTaaGMxfIRMtzp0XWvbvl7pPE3%2F3xzZy2NHcRbnRL3IWMfXOBZYix3s9aXI5HBhoCtCSsgIYfAEVoSJ4jHbarv8GwNYVfjUI...
by dolmadis
Tue Jan 31, 2023 2:53 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A Canon MPE-65 alternative?
Replies: 10
Views: 2076

Re: A Canon MPE-65 alternative?

On the camera, the lens was mounted in a barrel 3 cm long which had a 37 mm diam thread on the far end. The barrel simply unscrewed from the camera body. Just screwed this into a Nikon SLR lens mount that had a 37 mm female thread. Actually, it was a very slightly loose fit, just added one layer of...
by dolmadis
Mon Jan 30, 2023 10:54 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: A Canon MPE-65 alternative?
Replies: 10
Views: 2076

Re: A Canon MPE-65 alternative?

I wanted to see how my recently-aquired Leitz 0.32:1 microscope relay lens (about $300.0 ebay) stacked up against Canon's MPE-65 ($1,000.00). The Leitz lens on a Nikon D7200 gave a decent image, you can see the fine grooves at the base of the proboscis. Hello, What was your mounting method please? ...
by dolmadis
Mon Jan 23, 2023 5:44 am
Forum: Equipment Discussions
Topic: Variable Magnification Mitutoyo 5x
Replies: 15
Views: 2266

Re: Variable Magnification Mitutoyo 5x

Interesting post, thanks. I would be pleased to see your working plans for metal work and download 3D Resin Print file.

Best, John
by dolmadis
Wed Dec 28, 2022 9:58 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Insect on top of glass stage
Replies: 9
Views: 1599

Re: Insect on top of glass stage

Here's my setup - The pill bottles and film canisters are glued onto the glass with an adhesive called GOOP (which I strongly recommend just on general principles - nice stuff to have around). I Mike Hi Mike I took a look for GOOP on my local Amazon and found that there is a big range. Which do you...
by dolmadis
Tue Dec 27, 2022 2:57 am
Forum: Equipment Discussions
Topic: Qioptiq LINOS d.fine HR-M 2.8/80 0.2x Lens Test Results
Replies: 29
Views: 4718

Re: Qioptiq LINOS d.fine HR-M 2.8/80 0.2x Lens Test Results

Take care Robert with my best wishes.

“God Rest You Merry Gentlemen” as the Carol goes with the emphasis on Rest!!

Best, John
by dolmadis
Sat Dec 17, 2022 12:33 am
Forum: Equipment Discussions
Topic: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?
Replies: 25
Views: 3773

Re: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?

Hi Lou Could I ask please which reversed lenses you use give you the best results with the zoom you referred to earlier? Thanks, John John, Sure, here is what worked well for me, organized by field of view, from 5x to 1x. Step sizes for auto-bracketing refer to Oly PEN-F cameras; Panasonic G9 step ...
by dolmadis
Thu Dec 15, 2022 12:30 am
Forum: Equipment Discussions
Topic: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?
Replies: 25
Views: 3773

Re: Best Lens/Accessory Option to Achieve 1.5-2:1 Magnification with Micro Four Thirds?

[quote="Lou Jost" I do up to 5x automatic focus bracketing in the field with the zoom + reversed lens. Not easy, but the only way to go for some subjects. Optical quality is very good. Hi Lou Could I ask please which reversed lenses you use give you the best results with the zoom you referred to ear...
by dolmadis
Mon Nov 07, 2022 7:39 am
Forum: Equipment Discussions
Topic: New Focus Stacking Setup
Replies: 18
Views: 4043

Re: New Focus Stacking Setup

elf wrote:
Fri Jun 04, 2021 2:20 pm
The next step is to add a rotary table for stitching :D
As I have not ventured into stiching yet I would be interested in understanding the advantage of a rotary table.

Thanks, John
by dolmadis
Sat Aug 27, 2022 6:34 am
Forum: Equipment Discussions
Topic: Nikon Series S fine focus problems
Replies: 14
Views: 3450

Re: Nikon Series S fine focus problems

Update. The Thingiverse file produced a spur gear which did not fit properly and snugly over the criss crossed brass collar. A commercial 3D printing bureau in the UK very kindly modified the .stl file and printed me one in Natural Rigid Resin 4000. Fits perfectly and installed back to full working ...
by dolmadis
Wed Jul 13, 2022 11:38 am
Forum: Equipment Discussions
Topic: Nikon Series S fine focus problems
Replies: 14
Views: 3450

Re: Nikon Series S fine focus problems

Several months ago I used several search engines to see if a kind person had published a 3D printed version of the Fine Focus Spur Gear for Nikon model S microscope. A few references from some years ago that some people had but they lead nowhere. As I have come across an interesting way of potential...