Search found 8 matches

by yminter
Wed Jul 18, 2012 5:41 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: DSLR v microscope camera
Replies: 7
Views: 11230

DSLR vs Microscope Camera

Hello, I'll add my own stone to that discussion since your problematic seems some way similar to mine. 1) Setup & purpose : Our optical lab is used for taking pictures of electronics and mechanical parts during failure analysis or inspection. It is composed of : An MZ16 binocular with various object...
by yminter
Wed Jul 18, 2012 2:18 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Cushion & spherical optical aberation with DSLR on µscop
Replies: 10
Views: 3434

Are there any optics in, or markings on the "black tube" adapter attached to the camera? Yes : The adapter has optics inside. In any event, as I mentioned earlier, the 0.5X C mount adapter doesn't belong there when using a camera with an APS-C sized sensor. That adapter is made for cameras that use...
by yminter
Mon Jun 18, 2012 8:35 am
Forum: Frequently Asked Questions (FAQs)
Topic: Microscope FAQ
Replies: 5
Views: 12878

For those that like PDF documents, still from Olympus (I found it while looking for a formula for the DOF, which you'll find in "Digital Material Analysis - Fundamental Knowledge - Part 2 - Optical Terminology"):

http://www.microscopy.olympus.eu/micros ... y_7436.htm
by yminter
Mon Jun 18, 2012 4:40 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Cushion & spherical optical aberation with DSLR on µscop
Replies: 10
Views: 3434

http://www.photomacrography.net/forum/userpix/2507_DMLM_CMount_detail_1.jpg Here is a detail of the C-mount adapter; I had made a mistake between this one and the one of our binocular : this one is a 0.5X and not a 0.63X! I don't understand the end of this marking (the ^= 16 ) if you know what this...
by yminter
Fri Jun 15, 2012 10:59 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Cushion & spherical optical aberation with DSLR on µscop
Replies: 10
Views: 3434

Re: Cushion & spherical optical aberation with DSLR on µ

Both images were shot without moving the sample, just by replacing the camera by the DSLR + adapter & refocusing Part of your problem may be in that bit about "& refocusing". It looks to me like your second image has developed quite some curvature of field, compared to the first image. This can hap...
by yminter
Fri Jun 15, 2012 9:00 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Cushion & spherical optical aberation with DSLR on µscop
Replies: 10
Views: 3434

Re: Cushion & spherical optical aberation with DSLR on µ

Hi Enrico, thank you for this reply; I'll try to give you a little more details below. Does this webcam have built-in optics? I should expect it does. In this case, these optics are optimized for the sensor size of the webcam. Probably the webcam has a small sensor, but in the unlikely case that the...
by yminter
Fri Jun 15, 2012 8:07 am
Forum: Community Members and Friends
Topic: Another Hello from France
Replies: 2
Views: 3797

Another Hello from France

Hi folks, My name is Yves, I live in France near Paris and I practice micrography for my work. Though it is performed for work purpose and though my optics skills are not the most accurate, this is a part of my job that I like and that I try to improve. The main optical equipment I use are a Leica M...
by yminter
Fri Jun 15, 2012 7:38 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Cushion & spherical optical aberation with DSLR on µscop
Replies: 10
Views: 3434

Cushion & spherical optical aberation with DSLR on µscop

Here is my problem: I have a Leica DMLM µscope which is currently equipped with an old Leica 780X852pixels digital camera. I tried to adapt a Canon 550D on it using a commercial optical adapter that is to be screwed to tha C-mount adapter of the µscope and which offers the right adapter for the 550D...