Search found 84 matches

by Geopressure
Mon Sep 07, 2020 10:39 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Fluorite with masking tape
Replies: 12
Views: 1145

Re: Fluorite with masking tape

Nice image..and quite unusual!
by Geopressure
Mon Aug 31, 2020 11:24 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Agate anatomy
Replies: 2
Views: 664

Re: Agate anatomy

Stereo pairs are a good idea..have never gotten into that but I'm putting it on the list :)
by Geopressure
Sun Aug 30, 2020 12:54 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Hematite from Nordmark Sweden
Replies: 1
Views: 692

Re: Hematite from Nordmark Sweden

Hi bralex,

This looks good, but I feel it might be better to concentrate on a smaller number of crystals with higher mag. Have fun with your new setup!
by Geopressure
Sun Aug 30, 2020 9:46 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Agate anatomy
Replies: 2
Views: 664

Agate anatomy

A variety of interesting growth features are seen here. Dendritic filaments or tubes, hemispheres, and fortification banding. A few healed fractures thrown in. Quite an eco system for a rock...

Laguna Agate, Mexico
Short stack @ 2X
FOV 1.1 cm
Lag@2Xstk_vgwPost.jpg
by Geopressure
Sun Aug 16, 2020 11:15 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Spessartine garnet
Replies: 6
Views: 1529

Re: Spessartine garnet

I love the backlit version..nice job physicsmajor!
by Geopressure
Sun Aug 16, 2020 10:17 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Wulfenite with "haystack" Mimetite
Replies: 3
Views: 856

Re: Wulfenite with "haystack" Mimetite

Thanks jurkovicovic and physicsmajor. Not sure I have any particular insight about cleaning specimens..ultrasonic cleaners are good but one must be careful since crystals can detach from the matrix at times. Naturally it helps to start with material that is fairly clean to begin with. I like to add ...
by Geopressure
Fri Aug 14, 2020 1:13 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Wulfenite with "haystack" Mimetite
Replies: 3
Views: 856

Wulfenite with "haystack" Mimetite

Wulfenite with "haystack" Mimetite on Quartz,
Rowley Mine, Maricopa Co, AZ

Stacked at 2X
FOV 1.0 cm

It's hard to beat the vibrant, gemmy Wulfenite from this mine. Interesting that the colors are so similar. A little larger than most micro minerals but I thought it deserved a shot...
by Geopressure
Sun Jul 26, 2020 9:15 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: minerals from Slovakia
Replies: 13
Views: 3246

Re: minerals from Slovakia

These are very nice, though I agree that the out of focus foreground on the metatorbernite is distracting.
by Geopressure
Tue Jul 14, 2020 8:16 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Filaments in agate
Replies: 4
Views: 1361

Re: Filaments in agate

Thanks Jurkovicovic, I appreciate it!
by Geopressure
Mon Jul 13, 2020 4:11 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Female Jumping Spider (on Chrysocolla-encrusted Mixite)
Replies: 6
Views: 1880

Re: Female Jumping Spider (on Chrysocolla-encrusted Mixite)

Great image and I love the spider's contrast with the Chrysocolla! Also enjoyed your lighting description.
by Geopressure
Mon Jul 13, 2020 3:44 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Filaments in agate
Replies: 4
Views: 1361

Re: Filaments in agate

Good idea Saul..there may be more to see here. I need to give it a try.
by Geopressure
Mon Jul 13, 2020 9:28 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Filaments in agate
Replies: 4
Views: 1361

Filaments in agate

These filaments are probably composed of an iron mineral..floating in solid, translucent silica. Sometimes called "moss". A curious form that most people don't associate with minerals.

Short stack at 5X
FOV 3mm
by Geopressure
Tue Jun 09, 2020 6:56 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Goethite in Quartz
Replies: 8
Views: 1353

Thanks RoxnDox..glad you approve!
by Geopressure
Tue May 26, 2020 4:33 pm
Forum: Equipment Discussions
Topic: 24MP Canon Cameras
Replies: 2
Views: 775

I have been using the T7i for stacking with good results. No issues. Can't comment on the other models.
by Geopressure
Tue May 26, 2020 10:18 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Tourmaline on Lepidolite
Replies: 0
Views: 970

Tourmaline on Lepidolite

I really like lithium bearing minerals..had to crop this one quite a bit and re-sharpen for posting. I believe the specimen is from California.

Stacked at 5X
FOV 2.5mm



Image