High definition photo

I'm working about the second generation of these photographs. Quality and sharpness is better (really). I have now two lens tube.... Result tonight for the first construction.

Here new photo with the new tube....

difference ?


azurite

Frederic,

Your persistence has been richly rewarded and your last contribution is simply superb! Keep up the good work and please post your future results, as I'm sure they will be of interest to all who follow this topic.

Gene

Hm, I wonder. 11mm FOV with a 4X objective means that the extension (tube length) must be very short. What kind of tube lens (focal length) did you use for that last azurite photo?
If I use a 5X objective with my tube lens (focal length 200mm) at an extension of 160mm I get a FOV of ca. 7 mm. Anything much shorter than that and the image suffers from vignetting and loss of resolution, especially in the corners. Ideally, for a 4X objective, I would expect a FOV of about 8mm for peak performance.
I know that the Nikon CFI Plans have quite a tolerance for extensions deviating from the design length and the problems that might occur are difficult to judge in your image because the in-focus parts are rather centered.

It would be interesting if you could make a photo with identical set-up but choosing a specimen with much finer detail that covers the entire frame. This would really reveal any short-comings.

Cheers

Harry



Edited 1 time(s). Last edit at 03/30/2012 04:51PM by Harald Schillhammer.

11 mm with 4 images. I work with a panoramic tehnic. With my 100 mm tube lens, maximal FOV is 6 mm with my system.

I try with my 2x objective (new ! Find in china.... less expensive than mitutoyo but i can said result seems very good).

Result fastly.

Thanks for all Gene and everybody !



Edited 1 time(s). Last edit at 03/30/2012 06:53PM by Frédéric Hède.

Ah yes, I'm sorry. I didn't take the panorama into account.

Harry

Thank you, Frederic. It’s always a great enjoyment to make a journey through the crystal landscape.

Uwe Ludwig

Last generation of HD photo

Big here (42 Mpix)
Image zoomable

and small too

I use this technic often now.

An other example here :

small image and a link for the big




Big image here





Edited 1 time(s). Last edit at 04/29/2012 04:54PM by Frédéric Hède.

When you know the localities pretty much for sure you should consider uploading them to our general gallery where they won't get buried under all the new message board entries that will eventually bury them.

Rock Currier
Crystals not pistols.

Yes,

most of them are on mindat.

This specimen have been built with panoramic technic, she is small here but quality is very high.... Click on and quality is better but far of the original.





Edited 2 time(s). Last edit at 05/09/2012 12:25PM by Frédéric Hède.

Hello everybody !

I present 2 last HD photo (coposite photo with 4 ou 8 photo)


Image zoomable 4 photo





Image zoomable 8 photo

And last.... this compilation is a 100 Mpixel photo. Good trip :). Size is 60 mm of FOV

A trip in a small world

Stunning images Frédéric. Please post more, magnificent work!
Regards,
Rog