Search found 3594 matches

by mrsonchus
Sat Dec 14, 2019 12:54 pm
Forum: Pictures and Videos
Topic: Diatoms from the Seychelles!
Replies: 13
Views: 188

Re: Diatoms from the Seychelles!

Must agree, not my area as they say, but really interesting images and the link is to a very readable (for such as myself with no Diatom knowledge at-all) and interesting article! As mentioned, the variety of forms must surely be a response to optimal requirements in one way or another - clearly a f...
by mrsonchus
Tue Dec 10, 2019 8:00 pm
Forum: Pictures and Videos
Topic: Muscles in leg of centipede
Replies: 5
Views: 114

Re: Muscles in leg of centipede

Another superb one!
That's a great image - the 'strands' are clearly visible!
by mrsonchus
Mon Dec 09, 2019 7:55 pm
Forum: Pictures and Videos
Topic: Alanine POL
Replies: 2
Views: 107

Re: Alanine POL

Wow! Chunky!

Very nice, and pretty stunning.
by mrsonchus
Sun Dec 08, 2019 10:05 pm
Forum: Illumination Techniques
Topic: Darkfield for AO 570
Replies: 10
Views: 540

Re: Darkfield for AO 570

Forgot to say also, the moss branch is in water, not quite covered, hence the blown highlights - complete immersion or none at all would improve this detail.
by mrsonchus
Sun Dec 08, 2019 7:59 pm
Forum: Pictures and Videos
Topic: Diatom from Pesacola, Florida
Replies: 6
Views: 141

Re: Diatom from Pesacola, Florida

An intriguing image, very nice.
by mrsonchus
Sun Dec 08, 2019 7:55 pm
Forum: Illumination Techniques
Topic: Darkfield for AO 570
Replies: 10
Views: 540

Re: Darkfield for AO 570

Hi, agreed, those are nice images! I used a black card circle to get DF on my stereo 'scope, DF stereo disc (1).jpg https://lh3.googleusercontent.com/mlg9xp53ShFJ582gWU5Mru6xrgbSCQ0WcjZm7HCz0gucDeYd8WWdLO1YVvpIDd95mE4nep-k06GYpNmaL3cuqwCSJ8RbMHFZXJu18KehGMQMqSRHsXyfD4_qcXTqO3ys7pIpwvHRVvVR2iGVcpMtf9...
by mrsonchus
Thu Dec 05, 2019 10:53 pm
Forum: Microscopes and optics
Topic: Zeiss Eyepieces - anyone have any info please?
Replies: 6
Views: 111

Re: Zeiss Eyepieces - anyone have any info please?

Yes, I thought the abscence of correction ALA infinity systems may be the reason. They're 'up on e-bay' right now if anyone's interested! I just acquired a BX50 (no objectives or condenser) with it's deliciously-bright 100W lamp and built-in filters, sooo, I will shortly have a nice trinocular BX40 ...
by mrsonchus
Thu Dec 05, 2019 10:41 pm
Forum: Microscopes and optics
Topic: Zeiss Eyepieces - anyone have any info please?
Replies: 6
Views: 111

Re: Zeiss Eyepieces - anyone have any info please?

Thanks again scaro' - very useful to know. I was surprised to find that they not only gave equal quality views (with UIS2 objectives), but what certainly appeared to be, equal FOV as the Olympus eyepieces, as used in the Olympus BX40.....
Tomorrow I'll check this more accurately and get back.
by mrsonchus
Thu Dec 05, 2019 7:48 pm
Forum: Microscopes and optics
Topic: Zeiss Eyepieces - anyone have any info please?
Replies: 6
Views: 111

Re: Zeiss Eyepieces - anyone have any info please?

Thanks Scaro' - that gives me something to go on - any idea what the series of numbers signify?

Off to look-up stemi 'scopes!
by mrsonchus
Thu Dec 05, 2019 5:33 pm
Forum: Microscopes and optics
Topic: Zeiss Eyepieces - anyone have any info please?
Replies: 6
Views: 111

Zeiss Eyepieces - anyone have any info please?

Hi all, I just acquired these Zeiss eyepieces and wondered if anyone may be able to give me some information about them. Incidentally - when put into a BX40 they perform absolutely the same in all aspects - quality, field-size inc, as the BX40's Olympus eyepieces. A few images, https://lh3.googleuse...
by mrsonchus
Mon Nov 25, 2019 9:19 pm
Forum: Pictures and Videos
Topic: Algae, or Desmid (or is that redundant)?
Replies: 6
Views: 216

Re: Algae, or Desmid (or is that redundant)?

Hi Kurt,

a really striking image - very interesting indeed. Have you mounted it in water under coverslip?
It really does match 75's ID suggestion well I think.
by mrsonchus
Mon Nov 25, 2019 9:11 pm
Forum: Introduce yourself
Topic: New to the community
Replies: 5
Views: 232

Re: New to the community

Welcome Sara, you'll find plenty of friendly-folk here!
by mrsonchus
Thu Nov 21, 2019 10:59 pm
Forum: Camera systems and imaging
Topic: Help attaching full frame DSLR to Olympus BX40
Replies: 19
Views: 510

Re: Help attaching full frame DSLR to Olympus BX40

It's a good thought 75', as a full-frame DSLR is a lot of money! I may well save a substantial amount by going for the lower-mag PE. I think I'll have a look around for a 2x or even 1.6x - my other option was a Canon 6D mk2, but the body alone is about £1200 - surely I may find a PE 2x or even 1.6x ...
by mrsonchus
Thu Nov 21, 2019 9:56 pm
Forum: Camera systems and imaging
Topic: Help attaching full frame DSLR to Olympus BX40
Replies: 19
Views: 510

Re: Help attaching full frame DSLR to Olympus BX40

Ah, yes I see the ful-frame sensor would be optimal for a 2x photeyepiece and 22mm field number - the 2.5x exceeds the field, and the full-frame will 'reach out to' more of the 22mm field (using 2.5x PE) than the APSC sensor - thanks 75' that's exactly the info I am looking for. In my case if the gr...
by mrsonchus
Thu Nov 21, 2019 6:45 pm
Forum: Camera systems and imaging
Topic: Help attaching full frame DSLR to Olympus BX40
Replies: 19
Views: 510

Re: Help attaching full frame DSLR to Olympus BX40

Here's a handy link re camera attachment... . Reading through this it seems to me that the PE2.5 eyepiece (projection) will match a full-frame (AKA 35mm) camera's sensor? However, this seems to be with eyepiece FN of 18mm? The Olympus has a FN of 22mm (as does mine) or 26.5mm, so presumably the view...
by mrsonchus
Thu Nov 21, 2019 6:05 am
Forum: Introduce yourself
Topic: Greetings All :)
Replies: 10
Views: 323

Re: Greetings All :)

Hi beemer, there are definitely other ways to connect a camera - there are some far more 'squat' adapters from Olympus that will do the job also although I don't know the part numbers I'm afraid. FF is a difficult one to achieve although I'm sure it's possible, maybe with a bespoke configuration? In...
by mrsonchus
Wed Nov 20, 2019 11:13 am
Forum: Introduce yourself
Topic: Greetings All :)
Replies: 10
Views: 323

Re: Greetings All :)

Hi beemer and welcome to this fine forum! :D I recently moved over from Leitz (Orthoplan) to an Olympus BX40 myself and have been very impressed indeed with the performance. Connection of a DSLR to the 'scope is exactly the same as it was for my previous Leitz Orthoplan, here's an image of my BX40 f...
by mrsonchus
Tue Nov 19, 2019 7:46 pm
Forum: Pictures and Videos
Topic: Navicula lyra
Replies: 15
Views: 444

Re: Navicula lyra

A beautiful image, again such detail - the resolution must be superb!
by mrsonchus
Tue Nov 19, 2019 7:44 pm
Forum: Microscopes and optics
Topic: Something is out of alignment - but what?
Replies: 20
Views: 910

Re: Something is out of alignment - but what?

A good job done!
Time to get down to business!

Enjoy your new 'scope, and keep us posted on what you get up to! :D :D
by mrsonchus
Tue Nov 19, 2019 1:44 pm
Forum: Microscopes and optics
Topic: Something is out of alignment - but what?
Replies: 20
Views: 910

Re: Something is out of alignment - but what?

Great news.
Yes, I've been a customer of Brunel since I first started in 2015. I bought a new infinity 'scope (SP200) from them then later progressed to a used Leitz Orthoplan - also from them. A reliable and honest source for certain.

What was the problem with the 'scope?
by mrsonchus
Thu Nov 14, 2019 2:53 pm
Forum: Microscopes and optics
Topic: Something is out of alignment - but what?
Replies: 20
Views: 910

Re: Something is out of alignment - but what?

Hi, have you had a look while rotating the nosepiece a touch either way, in case it's the set-point (where each objective 'clicks-into-place' when rotated to select) of the nosepiece causing this?
by mrsonchus
Tue Nov 12, 2019 11:11 pm
Forum: Microscopes and optics
Topic: Something is out of alignment - but what?
Replies: 20
Views: 910

Re: Something is out of alignment - but what?

Hi, this has the look of a nosepiece that isn't locating or isn't mounted properly, stopping with each objective misaligned from the 'scope's optical axis.
by mrsonchus
Sun Nov 10, 2019 9:49 pm
Forum: Pictures and Videos
Topic: Mitosis in onion root tips
Replies: 23
Views: 2225

Re: Mitosis in onion root tips

Excellent series Bob. Really good to see the progression of phases.

Nice work old chap, and superbly interesting!
by mrsonchus
Sun Nov 10, 2019 5:43 pm
Forum: Pictures and Videos
Topic: Fluorescent differences between photosynthetic prokaryotes and eukaryotes
Replies: 19
Views: 863

Re: Fluorescent differences between photosynthetic prokaryotes and eukaryotes

A kind offer Bob. Yes, avoidance of the dreaded conjugate image planes! The Oly's are well-away from the FI, no problems there. Your idea of a set of holders is a good one I think, as the 3D-printer is probably easily capable of producing a holder with a thin lip, into which a glass filter of <45mm ...
by mrsonchus
Sun Nov 10, 2019 5:01 pm
Forum: Pictures and Videos
Topic: Fluorescent differences between photosynthetic prokaryotes and eukaryotes
Replies: 19
Views: 863

Re: Fluorescent differences between photosynthetic prokaryotes and eukaryotes

Yes, they're quite a size! The BX40 has a neat little filter changer that fits onto the field-port and takes 3 in-out filters, unframed 45mm type. A very handy device but the 45mm filters are hard to find....
by mrsonchus
Sun Nov 10, 2019 12:44 pm
Forum: Pictures and Videos
Topic: Fluorescent differences between photosynthetic prokaryotes and eukaryotes
Replies: 19
Views: 863

Re: Fluorescent differences between photosynthetic prokaryotes and eukaryotes

Hey, that drill-cutter looks to be just what I need to reduce some large filters down to a 45mm for my Oly!

Thanks for the post.
by mrsonchus
Tue Nov 05, 2019 8:23 pm
Forum: Beginner's corner
Topic: Lugols iodine
Replies: 2
Views: 443

Re: Lugols iodine

Hi, it stains starch, but is also a very useful mordant for staining with Gentian-violet, which will resist removal by alcohol when mordanted with an application of LI. See also gram-staining. I use it with G-violet with plant tissue staining.
by mrsonchus
Tue Nov 05, 2019 12:01 pm
Forum: Pictures and Videos
Topic: Micro hedgehog
Replies: 10
Views: 787

Re: Micro hedgehog

Uh-Oh.... No Bob...nooooo. :o :shock: ;)
We'll need to see release-images now to be sure you haven't released a bald hedgehog back into the wild!! :D

Keep up the good work old chap! :)
by mrsonchus
Mon Nov 04, 2019 9:05 pm
Forum: Pictures and Videos
Topic: Micro hedgehog
Replies: 10
Views: 787

Re: Micro hedgehog

A fine-looking fellow he/she is too! :D
by mrsonchus
Mon Nov 04, 2019 9:03 pm
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 1383

Re: Vetting newcomers

Tricky-one there Wes, seems at first-glance a good idea..... in principle certainly. It seems perhaps that the mechanism, in terms of how quickly the personae non gratae are removed, banned etc. Perhaps an automatic (i.e. without Oliver's attention required) removal or maybe suspension pending revie...