Search found 3086 matches

by rnabholz
Wed Feb 11, 2015 5:24 am
Forum: Pictures and Videos
Topic: Cross section of aneedle of Picea spec.
Replies: 10
Views: 5058

Re: Cross section of aneedle of Picea spec.

Manfred, (or anybody who would like to help)

What can you tell me about the Wacker FCA stain you used? I had not heard of it.

Thanks

Rod
by rnabholz
Wed Feb 11, 2015 4:43 am
Forum: Pictures and Videos
Topic: Cross section of aneedle of Picea spec.
Replies: 10
Views: 5058

Re: Cross section of aneedle of Picea spec.

Perhaps it is my fresh experience, and less than optimal results speaking, but this is ABSOLUTELY FANTASTIC!! I had planned to take another run at this subject tonight, but your shot may have defined the genre for all time. Anything I might post will look like a mud pie now! ;^) Would love to hear ...
by rnabholz
Wed Feb 11, 2015 2:02 am
Forum: Pictures and Videos
Topic: Pine Needle II
Replies: 6
Views: 3636

Pine Needle II

After seeing the possibilities that Manfred so capably demonstrated on his Pine Needle posting earlier today, it reinforced my desire to take another run at it. Tonight I placed more attention on my microtome cuts, and switched to a camera that gives me a bit more control over focus than the handhel...
by rnabholz
Tue Feb 10, 2015 8:09 pm
Forum: Pictures and Videos
Topic: Cross section of aneedle of Picea spec.
Replies: 10
Views: 5058

Re: Cross section of aneedle of Picea spec.

Perhaps it is my fresh experience, and less than optimal results speaking, but this is ABSOLUTELY FANTASTIC!! I had planned to take another run at this subject tonight, but your shot may have defined the genre for all time. Anything I might post will look like a mud pie now! ;^) Would love to hear m...
by rnabholz
Tue Feb 10, 2015 6:35 pm
Forum: Pictures and Videos
Topic: Methy Violet, an organic stain.
Replies: 5
Views: 3367

Re: Methy Violet, an organic stain.

Beautiful series.

The variety of textures is really intriguing.

Thanks for posting.
by rnabholz
Tue Feb 10, 2015 3:40 pm
Forum: Pictures and Videos
Topic: 1 centine Euro
Replies: 2
Views: 2107

Re: 1 centine Euro

Éclairage intéressant, impeccablement forte. Bravo!


Interesting light, impeccably sharp. Well done!

Rod
by rnabholz
Tue Feb 10, 2015 3:22 am
Forum: Pictures and Videos
Topic: Some more samples from the haematococcus culture
Replies: 13
Views: 6059

Re: Some more samples from the haematococcus culture

Those colors are just outstanding! And the mix of subjects is really interesting.

I am looking forward to some warmer weather so that I can collect some living subjects for study.

Nice work
by rnabholz
Tue Feb 10, 2015 3:05 am
Forum: Pictures and Videos
Topic: Cilantro
Replies: 9
Views: 4673

Re: Cilantro

mrsonchus wrote:Very nice images indeed, love the colours and good details - your 'phone takes a better picture than my 2mp dedicated USB camera!

Thanks for the treat and well done.
Thank you.
by rnabholz
Tue Feb 10, 2015 2:39 am
Forum: Pictures and Videos
Topic: Pine Needle Cross Section
Replies: 3
Views: 2666

Pine Needle Cross Section

Tonight's project was a cross section of a pine needle. It tested my still developing skills in nearly every way, and I am not declaring victory. First was cutting the sections. Using a hand microtome, I am sure you can imagine just how tiny these devils were. Getting them off of the razor, then on ...
by rnabholz
Mon Feb 09, 2015 7:27 pm
Forum: Pictures and Videos
Topic: Cilantro
Replies: 9
Views: 4673

Re: Cilantro

Thanks everyone, I appreciate the comments.

I did cut the sections using a hand microtome. That is a bit of an art form that I am still learning.

Rod
by rnabholz
Sun Feb 08, 2015 11:03 pm
Forum: Pictures and Videos
Topic: Cilantro
Replies: 9
Views: 4673

Cilantro

A couple of looks at a cilantro leaf.

The first is a cross section. 45x objective, brightfield, afocal using a Nexus 6 phone

The second caught my attention when I discovered the nicely visible xylem in the middle of the field. Same technical set up.

Thanks for looking.
by rnabholz
Sun Feb 08, 2015 10:58 pm
Forum: Pictures and Videos
Topic: Cyanobactérie
Replies: 5
Views: 3169

Re: Cyanobactérie

Une belle image, avec tellement de choses à prendre en, il retient l'attention pour un bon bout de temps. Excellente exécution technique ainsi. Félicitations A beautiful image, with so much to take in, it holds the attention for a good long while. Excellent technical execution as well. Congratulatio...
by rnabholz
Sun Feb 08, 2015 5:32 am
Forum: Pictures and Videos
Topic: Safranin Crystals
Replies: 9
Views: 4807

Re: Safranin Crystals

JimT wrote:Very nice. Reminds me of finely inlaid veneer wood in an artistic mural :)
Thanks Jim, I can see that.
by rnabholz
Sun Feb 08, 2015 5:30 am
Forum: Pictures and Videos
Topic: Safranin Crystals
Replies: 9
Views: 4807

Re: Safranin Crystals

Superb images! Beautiful colors and patterns. The quality you get from your cell-phone camera is also excellent. Thanks Gekko. I pains me a bit, having enjoyed photography since high school, to find myself using a phone, but it is hard to argue with the results. I tried a couple of point and shoots...
by rnabholz
Sun Feb 08, 2015 5:17 am
Forum: Pictures and Videos
Topic: Safranin Crystals
Replies: 9
Views: 4807

Re: Safranin Crystals

The QCC wrote:rnabholz

Rotate the stage 15° to 45° and watch the colours change.
Safranin has some very colourful crystal formations.
Thanks QCC

I have spent some time trying all the different powers/polarizer setting/field compositions.

Never ending beautiful possibilities.

Thanks for responding

Rod
by rnabholz
Sun Feb 08, 2015 5:13 am
Forum: Pictures and Videos
Topic: Safranin Crystals
Replies: 9
Views: 4807

Re: Safranin Crystals

Crater Eddie wrote:Wow! Very nice.
Thanks Eddie
by rnabholz
Sat Feb 07, 2015 1:38 pm
Forum: Pictures and Videos
Topic: Paramecium Aurelia (I thinK)
Replies: 7
Views: 3751

Re: Paramecium Aurelia (I thinK)

Can't help much with the ID, but it is very well executed, sharp shot of a cool "whatever-it-is".

Nicely done.

Rod
by rnabholz
Sat Feb 07, 2015 1:28 am
Forum: Pictures and Videos
Topic: Safranin Crystals
Replies: 9
Views: 4807

Safranin Crystals

Safranin Crystals under polarizers, 10x objective, Afocal, Nexus 6 phone.

I have a couple more of this slide that I think are really striking.
by rnabholz
Fri Feb 06, 2015 10:48 pm
Forum: Pictures and Videos
Topic: Amaryllis pollen
Replies: 6
Views: 3500

Re: Amaryllis pollen

Very nicely done.

I prefer the first of the two original images. The color palate is a bit nicer to my eyes. The wider field version has a short of oriental art feel to it for me.

Like it!
by rnabholz
Fri Feb 06, 2015 5:03 am
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

Very beautiful image, sharp and very colorful. I visited your website briefly and I'm amazed at, and impressed with your superb workmanship and imaginative creations. I will have to spend some more time there :) And welcome to the forum! Thank you for the welcome and the kind words. I have been inv...
by rnabholz
Fri Feb 06, 2015 4:57 am
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

Manfred wrote:Great image, go ahead this way... ;)
warmest regards from Austria,
Manfred
Thank you Manfred
by rnabholz
Thu Feb 05, 2015 5:55 pm
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

JimT wrote:I thoroughly enjoyed your Katana restoration project. Well done.
Oh yeah, great image of the crystals.
Thank you Jim. That project was very rewarding, and I continue to enjoy the end product. (Not so much these days with the night time temps below zero, but soon).

Thanks for responding
by rnabholz
Thu Feb 05, 2015 5:52 pm
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

vasselle wrote:Bonjour
Très belle photo.
Cordialement seb
Merci beaucoup.
by rnabholz
Thu Feb 05, 2015 5:51 pm
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

Crater Eddie wrote:Beautiful image!

CE
Thank you
by rnabholz
Thu Feb 05, 2015 5:50 pm
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Re: Tartaric Acid Crystals

lorez wrote:Very nice. It should be a window in a cathedral. I also enjoyed the web sites.

lorez
Thank you, as my wife would tell you, I have to many hobbies.... ;^)
by rnabholz
Thu Feb 05, 2015 4:58 am
Forum: Pictures and Videos
Topic: Tartaric Acid Crystals
Replies: 13
Views: 6433

Tartaric Acid Crystals

Tartaric Acid, polarized light. Afocal using Nexus 6 Phone.