iconoclastica wrote: ↑

Fri Nov 03, 2023 1:07 pm

Think the title of the topic ought to be "sporangia". I see about a hundred of 'm.

Yes, what is pictured is a sorus

I am okay with spending money to make it work - I'm looking into a configuration with the C-TT trinocular head, but can't seem to find more info on the dimensions. Take a look at: https://www.optics-pro.com/Produktdownloads/65562_2_Herstellerbroschuere_EN.pdf page 29 AFAIK, C-TT has the 38mm port a...

Note these are approximate - measured by ruler

This is enough precision, T-BPA and V-T tubes are designed for 38mm ports, so they don't fit.

Two more further questions, - Does the removable C-mount part have any built-in lens? - What's the inner diameter and depth of the phototube smooth cylinder part? (without the C-mount part) (if they match with other more standard Nikon phototubes, an alternative setup with T-BPA or V-T tube and a pr...

Thanks for the answers. I assume that the lens shown in the first picture is placed deep in the tube, isn't it? What I don't like is the 0.55X phototube "magnification" (in fact reduction). This is convenient for C-mount small sensor cameras but very low for APSC, so if as you say the tube is not re...

Thanks so much for performing the tests! If in your far subject test the Aurogon rear lens is mounted on the camera as it should, for me it's clear that the objective is not designed as infinite corrected, independently of it it could be forced to work like it altering the working distance and so wo...

Detailed pictures of your phototube could help, is the tube (blue arrow) ended in C-mount thread camera mount or the camera mount itself (red arrow) removable? . N-Si-head.jpg If doable direct projection suggested by Scarodactyl could be the best option. If you are restricted to C-mount there are so...

I'm intrigued about some technical aspects (just curiosity, as I'm not planning to buy it) - Is it infinite corrected? Easy to test pointing the tube lenses without objective to a distant subject If infinite would be very nice to test it on other tube lenses and to test the actual tube lenses focal ...

This rendering software is really misinterpreting the image data.

Macrero wrote: ↑

Sat Oct 28, 2023 11:08 am

See at high-res (50MP / 32MB).

Wow!

... could that iron oxide have been part of the original blood of the dinosaur? Who knows, but I don't think so. Iron oxides and hydroxides in several mineral species are the most widespread pigments that give sedimentary rocks (and of course fossils) their varied colors. Despite the admirably pres...

Yes, it's the 3D rendering for sure. Your new video shows the same issue, maybe a little less prominent. Thanks for the follow-up.

Nice images, the normal stacks are beautiful although I find the 3D-model ones misleading: what in the stacks (an in a direct observation of diptera wings) are hairs in the models they look like hills, an impression confirmed seeing the 3D animation.

At the camera end you need an adapter without built in lens from the male thread you have,likely M42x1, to Nikon F bayonet, a very easy to find accessory. For example https://www.ebay.com/itm/145360830054?hash=item21d82e3e66:g:OXIAAOSwGhVjYzbc&amdata=enc%3AAQAIAAAA0D05LF%2FKkFgcR5WJw%2FPNeeFmnvsQ8RU...

Very nice, but it seems like your Zinnia pollen, not like Lily (Lilium sp) ( viewtopic.php?p=215041#p215041 )