Search found 4632 matches

by Lou Jost
Tue Nov 03, 2020 9:28 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: MycoCam5 any users please?
Replies: 7
Views: 359

Re: MycoCam5 any users please?

There is a 'grab' button which would suggest it takes an image but it does nothing. Are you sure it does nothing? It sounds like another name for the PrintScreen function, which is sometimes called "Screen Grab" (and you would not see anything happen when you use PrintScreen). Have you tried using ...
by Lou Jost
Tue Nov 03, 2020 6:39 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: MycoCam5 any users please?
Replies: 7
Views: 359

Re: MycoCam5 any users please?

If the image fills the whole screen, what about PrintScreen?
by Lou Jost
Tue Nov 03, 2020 5:41 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Plans & stacks
Replies: 7
Views: 775

Re: Plans & stacks

No, Rik's answer was that if you are only making a stacked photograph, the curvature does not matter. I am sure he can elaborate on that. In fact, for stacking, sometimes a non-plan objective is better than a plan objective. Optical design always requires compromises, and if a designer has fewer con...
by Lou Jost
Mon Nov 02, 2020 5:14 pm
Forum: Equipment Discussions
Topic: Adapting aps-C to nikon: a few different methods
Replies: 6
Views: 610

Re: Adapting aps-C to nikon: a few different methods

I've done it both ways. Teleconverters are nice because they fit anywhere a camera fits, and they don't require any change in the set-up, nor in the tube lengths. They also provide a means of reaching deeper into a microscope head than you can with a whole camera, and I have sometimes found this to ...
by Lou Jost
Mon Nov 02, 2020 3:36 pm
Forum: Equipment Discussions
Topic: Adapting aps-C to nikon: a few different methods
Replies: 6
Views: 610

Re: Adapting aps-C to nikon: a few different methods

it would probably allow the use of a full frame camera for direct projection which would be fairly ideal.
That's mostly what I use it for.
by Lou Jost
Mon Nov 02, 2020 2:11 pm
Forum: Equipment Discussions
Topic: Adapting aps-C to nikon: a few different methods
Replies: 6
Views: 610

Re: Adapting aps-C to nikon: a few different methods

Can teleconverters be part of a solution when the projected magnification is not enough? I find the Nikon 1.4x TC to be very useful for this kind of thing.
by Lou Jost
Mon Nov 02, 2020 1:11 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Plans & stacks
Replies: 7
Views: 775

Re: Plans & stacks

Integrated circuits or such starkly geometric objects would probably also suffer under non-plans.
I wonder if there has been a misunderstanding of Rik's answer? Are you making 3-D models? If not, Rik said the field curvature does not matter when stacking.
by Lou Jost
Sun Nov 01, 2020 7:41 am
Forum: Equipment Exchange
Topic: Thorlabs 2x Superapochromat on eBay
Replies: 5
Views: 683

Re: Thorlabs 2x Superapochromat on eBay

Is the size of its image circle known?
by Lou Jost
Sun Nov 01, 2020 7:28 am
Forum: Equipment Discussions
Topic: Macroscopes - some musings
Replies: 9
Views: 857

Re: Macroscopes - some musings

I have the big heavy Leica PlanApo 2x front objective. It is chroma-free, I don't see any CA in the image. When attached to a tube lens, the center is perfect but there is what I would describe as exaggerated perspective, and there is a lot of distortion in the edges. I am hopeful that there is some...
by Lou Jost
Sun Nov 01, 2020 6:33 am
Forum: Equipment Discussions
Topic: Review of Mitakon Creator 85mm f/2.8 1-5X Mark II
Replies: 9
Views: 869

Re: Review of Mitakon Creator 85mm f/2.8 1-5X Mark II

Nice review, but I have one minor suggestion. You say that no one you know uses filters for these types of lenses. However, filters are very useful and I know many who use them, including myself. Cross-polarization is a common technique in macrophotography. I also use barrier filters for fluorescenc...
by Lou Jost
Wed Oct 28, 2020 6:48 am
Forum: Photography Through the Microscope
Topic: Porcupine quill
Replies: 8
Views: 664

Re: Porcupine quill

That's much better!
by Lou Jost
Tue Oct 27, 2020 2:49 pm
Forum: Photography Through the Microscope
Topic: Porcupine quill
Replies: 8
Views: 664

Re: Porcupine quill

I am puzzled, the scale seems way off if this is the cross section of a porcupine quill. It would appear from your magnification of 100x that this quill is about the diameter of a large diatom. Yet quills are much thicker than that. What is going on?
by Lou Jost
Tue Oct 27, 2020 9:10 am
Forum: Equipment Discussions
Topic: Looking for a compact, rugged camera
Replies: 6
Views: 561

Re: Looking for a compact, rugged camera

In addition to Chris' question, we also need to know what you want to do with it besides macro.

We give our reserve rangers Panasonic bridge cameras with a Raynox lens. Good macro and excellent for birds and mammals (600mm equivalent lens). Not good in low light though.
by Lou Jost
Tue Oct 27, 2020 4:50 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: 1st attempting at modifying a condenser
Replies: 3
Views: 442

Re: 1st attempting at modifying a condenser

I'm gradually working through it.
And we are all learning a lot in the process.
by Lou Jost
Mon Oct 26, 2020 6:01 pm
Forum: Equipment Discussions
Topic: MJKZZ Extreme system and ...
Replies: 34
Views: 1762

Re: MJKZZ Extreme system and ...

It appears that the entire camera/lens assembly is "resting" on the microscope bracket. That's right. Super-easy, fast to change lenses, but perfectly sturdy. Sometimes I use rings that go through the hole in the stage support and can be locked down from above and below, making a very rigid assembl...