Search found 200 matches

by dragonblade
Sun Nov 27, 2022 7:38 pm
Forum: Beginners Micro
Topic: Lens protection for afocal imaging?
Replies: 2
Views: 1758

Re: Lens protection for afocal imaging?

No, but I only make setups that are meant to be permanent so it isn't a possibility. Some degree of jank is inherent with something that will be mounted and unmounted frequently though so it might be a good idea in this case. Just check to make sure it doesn't affect image quality. Oh for sure. I u...
by dragonblade
Sun Nov 27, 2022 1:47 am
Forum: Beginners Micro
Topic: Lens protection for afocal imaging?
Replies: 2
Views: 1758

Lens protection for afocal imaging?

Just curious if anyone uses any kind of lens protection when doing afocal imaging? Obviously, because the camera lens is such a short distance away from the microscope's eyepiece (usually just a few mm) there is always that small chance of the front glass element of the lens bumping the eyepiece. In...
by dragonblade
Fri Dec 17, 2021 12:47 am
Forum: Beginners Micro
Topic: Avoiding physical contact with the 40x objective
Replies: 3
Views: 3131

Avoiding physical contact with the 40x objective

I was using my compound microscope today and there were times when it looked like my 40x objective was making physical contact with the cover slip. While viewing through the eyepiece, I could see the image shift when focusing and moving the stage. I was using fine focus of course. Is there any way t...
by dragonblade
Sun Dec 12, 2021 11:46 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Two afocal photomicrography setups (now three)
Replies: 29
Views: 42055

Re: Two afocal photomicrography setups (now three)

A very nice afocal setup. And compact too. That's interesting that you're using an Olympus lens with a Canon EF adapter. I know that with the EF mount, there is a considerable distance between the lens and the focal plane which makes it rather challenging to adapt lenses successfully. A lot of the o...
by dragonblade
Sun Dec 12, 2021 4:09 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Two afocal photomicrography setups (now three)
Replies: 29
Views: 42055

Re: Two afocal photomicrography setups (now three)

I admit I'm rather envious of these afocal trinocular setups. I just have to make do with a modest monocular scope. Pau, I'm intrigued by the empty M49x0.75 filter ring. Could you explain how it prevents the camera lens from hitting the eyepiece? I would have thought that the eyepiece would be a sma...
by dragonblade
Tue Jan 12, 2021 8:36 am
Forum: Photography Through the Microscope
Topic: Lacrymaria olor
Replies: 8
Views: 2948

Re: Lacrymaria olor

Amazing organism. Great photos and footage.
by dragonblade
Sun Jan 10, 2021 10:35 pm
Forum: General Discussion Forum and Community Announcements
Topic: Having trouble uploading avatar
Replies: 4
Views: 2560

Re: Having trouble uploading avatar

Thank you! That did the trick.
by dragonblade
Sun Jan 10, 2021 7:29 pm
Forum: General Discussion Forum and Community Announcements
Topic: Having trouble uploading avatar
Replies: 4
Views: 2560

Re: Having trouble uploading avatar

Thank you for the instructions. I'm a Photoshop user and don't have much experience with Gimp. i have Photoshop CS4 but unfortunately, 'Save to Web' is not one of the Export options. I may have downloaded Gimp in the past. I'll have to check.
by dragonblade
Sun Jan 10, 2021 6:20 pm
Forum: General Discussion Forum and Community Announcements
Topic: Having trouble uploading avatar
Replies: 4
Views: 2560

Having trouble uploading avatar

I'm trying to upload an image of mine as an avatar and I'm having no success at all. I note the requirements state that images can't be more than 80 x 80 pixels and 6 KiB. I haven't heard the term 'KiB' before (I assume that's referring to 'KB.') I resized my image down to 80 x 80 pixels at 72dpi an...
by dragonblade
Thu Dec 24, 2020 12:35 am
Forum: General Discussion Forum and Community Announcements
Topic: Query about preparation of slide for salt crystals
Replies: 4
Views: 2312

Re: Query about preparation of slide for salt crystals

Overnight? That's a long period of time. Since I'll be shooting time lapse through the microscope, I might try and leave the slide out on an outdoor table on a sunny day to speed up the evaporation. I would like to start shooting just as the water begins to evaporate and allow the camera to keep run...
by dragonblade
Tue Dec 22, 2020 4:10 pm
Forum: General Discussion Forum and Community Announcements
Topic: Query about preparation of slide for salt crystals
Replies: 4
Views: 2312

Re: Query about preparation of slide for salt crystals

Thank you for the tips. I have seen some awesome imagery of crystals from you in the gallery here. Really great work. At first, I was thinking of leaving the slides out on an outdoor table in the backyard but I'll put them on a window sill like you suggest. Roughly how long do you reckon it will tak...
by dragonblade
Sun Dec 20, 2020 5:49 pm
Forum: General Discussion Forum and Community Announcements
Topic: Vorticella - fastest moving organism?
Replies: 10
Views: 4067

Re: Vorticella - fastest moving organism?

iconoclastica wrote:
Sun Dec 20, 2020 2:09 pm
Lou, a Peregrine falcon flying under my microscope would probably give me quite a shock!
Which is nothing, compared to how that falcon would feel.
Fair point! I think a cheetah running under my scope would feel equally stressed / traumatised.
by dragonblade
Sun Dec 20, 2020 5:48 pm
Forum: General Discussion Forum and Community Announcements
Topic: Vorticella - fastest moving organism?
Replies: 10
Views: 4067

Re: Vorticella - fastest moving organism?

I'm not sure if the shorter distance of travel has anything to do with Vorticella appearing to move faster than a cheetah when in actual fact, it is not faster. Don't forget, you are looking at it under high magnification. Oh yea that thought made more sense to me after I made my last post. A Pereg...
by dragonblade
Sun Dec 20, 2020 9:22 am
Forum: General Discussion Forum and Community Announcements
Topic: Query about preparation of slide for salt crystals
Replies: 4
Views: 2312

Query about preparation of slide for salt crystals

I have noted that some people use salt solutions in water and allow that to evaporate on a slide. I'm hoping to do the same with samples of sea water as I live close to the beach. Hopefully, I can get some interesting crystal formations appearing under my microscope which I plan to shoot in time lap...
by dragonblade
Sun Dec 20, 2020 9:09 am
Forum: General Discussion Forum and Community Announcements
Topic: Vorticella - fastest moving organism?
Replies: 10
Views: 4067

Re: Vorticella - fastest moving organism?

Another speedy creature worth mentioning is the mantis shrimp. Apparently, it's strike is equivalent to a low caliber bullet and can even smash glass.