Search found 3902 matches

by mrsonchus
Thu Aug 27, 2020 9:50 pm
Forum: Beginner's corner
Topic: Microscope for engine oil analysis
Replies: 43
Views: 3505

Re: Microscope for engine oil analysis

Hi Niklas, I can try! Can you give me a better idea of what I need to be doing?
by mrsonchus
Thu Aug 27, 2020 9:19 pm
Forum: Beginner's corner
Topic: Microscope for engine oil analysis
Replies: 43
Views: 3505

Re: Microscope for engine oil analysis

Hi, The BH-2-RLA-2 fitting also has an iris (field iris allowing the elimination of halos with the DF settings and N.A. matching presumably) with a BD drop-in filter I bought recently to go with it in the sale. There's an ND-filter too, that automatically flips in (and may be flipped-out again if pr...
by mrsonchus
Thu Aug 27, 2020 9:08 pm
Forum: Beginner's corner
Topic: Microscope for engine oil analysis
Replies: 43
Views: 3505

Re: Microscope for engine oil analysis

Hi 75' - quite a coincidence! When I saw this thread a couple of days ago I mentioned it to my Wife who said I should sell it on and stop moaning about space! So, finally I'm getting a listing built. But it may be O.K. for Niklas, it's in lovely working condition. Oh yes, here's a link to a set of i...
by mrsonchus
Thu Aug 27, 2020 8:56 pm
Forum: Beginner's corner
Topic: Microscope for engine oil analysis
Replies: 43
Views: 3505

Re: Microscope for engine oil analysis

Hi, I may have a 'scope that may suit you. It's an Olympus BHM with infinity objectives, Neo-Splan LWD-50x and Neo-Splan 20x, DPlans at 10x and 5x. This 'scope is able to give incident and darkfield incident as it has the BH2 RL attachment. I'm just about to put it onto e-bay (U.K.) and it will prob...
by mrsonchus
Mon Aug 24, 2020 3:27 am
Forum: For forum members who want to buy and sell equipment
Topic: Considering upgrade of stereozoom 'scope
Replies: 28
Views: 2503

Re: Considering upgrade of stereozoom 'scope

Scarodactyl wrote:
Mon Aug 24, 2020 1:09 am
What's your budget range? There are some good used CMO options but it depends on how much you want to shell out.
pm sent
by mrsonchus
Sun Aug 23, 2020 4:42 pm
Forum: For forum members who want to buy and sell equipment
Topic: Considering upgrade of stereozoom 'scope
Replies: 28
Views: 2503

Considering upgrade of stereozoom 'scope

Hi all, I'm really quite fed-up with the tragic images coming through the trinocular photo-port of my generic (badged as Amscope) trinocular zoom stereo 'scope. It's of the type where the left eyepiece is given-over to the photo light-path with the pull of a pell/push bar. Also it's the usual Greeno...
by mrsonchus
Sun Aug 23, 2020 4:28 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

Many thanks all, very kind comments. :D
by mrsonchus
Sun Aug 23, 2020 4:27 pm
Forum: Beginner's corner
Topic: Any point getting stains with a stereo microscope?
Replies: 5
Views: 884

Re: Any point getting stains with a stereo microscope?

Thanks John, those threads were great! Fantastic detail! It's nice to see the kind of results you can get with hand-sectioning. Would you say those stains are a better bet to start off with than Eyosin and Hematoxalin? Cheers Markus Without a shadow of doubt yes - Haematoxylin (I use Harris for nuc...
by mrsonchus
Sun Aug 23, 2020 8:57 am
Forum: Beginner's corner
Topic: Any point getting stains with a stereo microscope?
Replies: 5
Views: 884

Re: Any point getting stains with a stereo microscope?

They certainly do add to hand sections, see here
See here too....

Suggest, safranin (powder to mix yourself), alcian-blue - both aqueous, both cheap and available as powders!
by mrsonchus
Sat Aug 22, 2020 10:24 am
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

Cheers! The first one (the elongated) looks very much like Navicula digitoradiata Longueur : 88 microm. Largeur : 13,8microm. 10-11 stries / 10 microm. (from a collection of Mediterranean diatom photos). Looks very, very like it Hobby' - here's a link with a good likeness... It also seems to have a...
by mrsonchus
Sat Aug 22, 2020 8:07 am
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

Here's another one - trying-out ToupView's measuring features again.
Image
by mrsonchus
Fri Aug 21, 2020 7:51 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

Hobbyst46 wrote:
Fri Aug 21, 2020 3:07 pm
Very nice images !
The distance of 2.98 um indicates a very high density of stria (~39/10um).
I think you're right! It seems I may well have cropped this one during PP - see revised measurement of 85µ....
by mrsonchus
Fri Aug 21, 2020 7:49 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

Aha! I thought the measured diatom was a little small.... I think I must have cropped the image while PP. Here's what I think is the uncropped and correctly-measured version - 4x the size at 80+µ (oops :oops: ) https://lh3.googleusercontent.com/pw/ACtC-3c5NHBEVnA4MFg0T4AvrrWCSGnZJLMLVKQV-lOgsJR2_YGr...
by mrsonchus
Fri Aug 21, 2020 6:36 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

MicroBob wrote:
Fri Aug 21, 2020 6:09 pm
Hi John,
with a tungsten carbide knife it might be possible to section them and very little work has been done on staining them! :D

Bob
Help-me!
Bob, you are bonkers! :D
by mrsonchus
Fri Aug 21, 2020 4:31 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Re: Old Diatom Slide From Drawer

75RR wrote:
Fri Aug 21, 2020 4:03 pm
Picking up some very nice detail - the dark side will get you yet!
ARRRGGHHHHH! Never - leaves for ever! (although these Diatom-thingies are quite nice...)

Thanks both for your comments.
by mrsonchus
Fri Aug 21, 2020 2:26 pm
Forum: Pictures and Videos
Topic: Old Diatom Slide From Drawer
Replies: 14
Views: 1362

Old Diatom Slide From Drawer

Hi all, a few images to share. As most know, my area is Botanical, but I've been rummaging through some rarely-opened drawers and boxes in my lab with a view to tidying-up (or at least trying to...). Anyway I found an old slide with Diatoms on it that I must have acquired with some of the old mixtur...
by mrsonchus
Fri Aug 14, 2020 7:23 pm
Forum: Specimens, samples and slides
Topic: Moss Capsule sectioning for slide making
Replies: 37
Views: 10501

Re: Moss Capsule sectioning for slide making

Hi shawn. If you mean the wax-blocks (containing specimen for sectioning), I use those cheap plastic divided boxes that sets of screws etc come in. As far as ambient environment, room-temp is fine. The blocks really do keep well for several years at least, in my experience. I often have 'left over' ...
by mrsonchus
Fri Aug 14, 2020 5:42 am
Forum: Beginner's corner
Topic: How to reset ToupView calibration?
Replies: 3
Views: 783

Re: How to reset ToupView calibration?

Hi, can you give a little more detail please. I use TV quite a lot and may be able to help...
by mrsonchus
Wed Aug 12, 2020 9:33 am
Forum: Beginner's corner
Topic: Eosin Y with Methylene Blue?
Replies: 1
Views: 679

Re: Eosin Y with Methylene Blue?

Hi, well I haven't used this combination myself before although I've used and have both of them. My use is entirely for Botanical sectioned and mounted, sometimes 'live', tissue. What these 2 are though is, on paper a reasonable pairing. The MB is as you say a nuclear stain that also may be used as ...
by mrsonchus
Tue Aug 11, 2020 7:59 pm
Forum: Microscopy accessories
Topic: SLIP ON EYECUP ADAPTERS
Replies: 4
Views: 1478

Re: SLIP ON EYECUP ADAPTERS

Same here, I definitely prefer eyecups during observation but am unable, as a wearer of glasses, to use them. The distance from the eyepiece glass and the amount of light intruding around my glasses then makes it impractical. The difference in the viewing 'experience' is to me anyway so much better ...
by mrsonchus
Mon Aug 10, 2020 9:21 pm
Forum: Microscopes and optics
Topic: Trinocular Projection Lenses for DSLRs
Replies: 130
Views: 11103

Re: Trinocular Projection Lenses for DSLRs

Ha! Fell into my fiendish trap! :oops: :D :D
by mrsonchus
Mon Aug 10, 2020 9:06 pm
Forum: Microscopes and optics
Topic: Trinocular Projection Lenses for DSLRs
Replies: 130
Views: 11103

Re: Trinocular Projection Lenses for DSLRs

That's not a 'tilt' - it's merely that the head isn't quite turned to the right position to line up. Just turn the head very slightly to make the line horizontal as it were - no problem there! It'll be a tiny amount either CW or ACW of course.
by mrsonchus
Sun Aug 09, 2020 6:26 pm
Forum: Microscopes and optics
Topic: Trinocular Projection Lenses for DSLRs
Replies: 130
Views: 11103

Re: Trinocular Projection Lenses for DSLRs

I think I have one of those in my drawer - I have a look at it after tea.
by mrsonchus
Sun Aug 09, 2020 5:08 pm
Forum: Beginner's corner
Topic: ToupView crashing after recording video
Replies: 5
Views: 1210

Re: ToupView crashing after recording video

The one I use is even more recent (this June), see this post.
by mrsonchus
Sun Aug 09, 2020 2:09 pm
Forum: Microscopes and optics
Topic: Trinocular Projection Lenses for DSLRs
Replies: 130
Views: 11103

Re: Trinocular Projection Lenses for DSLRs

Hmm, an interesting comparison but the setup isn't quite good enough to make it valid. The slides aren't so bad, the woody one has some interesting features in cluding 'expanded ray' tissue - a product of fast post-1st year growth where the rays have to grow 'sideways' to keep up with the rapid incr...
by mrsonchus
Sat Aug 08, 2020 5:05 am
Forum: Beginner's corner
Topic: ToupView crashing after recording video
Replies: 5
Views: 1210

Re: ToupView crashing after recording video

Hi, this sometimes happens with TView on my Linx tabled (32-bit) but never on my Laptops (64-bit), all Windows 10. I suspect that it's either a 32 vs 64-bit difference (in either the TV-software version or the op-sys version) or a resource shortage in the 'smaller' Linx - which has less of everythin...
by mrsonchus
Wed Aug 05, 2020 2:17 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2837

Re: Photo tube adapter

Ah.. too small drat!
by mrsonchus
Wed Aug 05, 2020 12:44 pm
Forum: Home-made microscope adaptations
Topic: EOS 4000D modification
Replies: 11
Views: 5777

Re: EOS 4000D modification

Hi all, I don't suppose this adapter would do the trick for a 60D? I use a similar one for my 200D. A really handy item. A spare cover is cheap enough too - so a hole may be made for the cable. The 200D (as-did my previous 1200D) has a slot fitted, with a little rubber plug. Here's a link to a spare...
by mrsonchus
Wed Aug 05, 2020 12:27 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2837

Re: Photo tube adapter

? The Olympus dovetail I refer to is the one at the bottom of the U-SPT - I use on with a (for infinity in my case) PE2.5x in the top. The item to which I linked has no dovetail, just a straight connector that looks like it will go into your photoport directly - leaving the c-mount available... The ...