Search found 1005 matches

by johan
Tue Sep 20, 2011 4:23 am
Forum: Equipment Discussions
Topic: hotshoe "tilt flash down a bit" flash unit?
Replies: 9
Views: 2180

hotshoe "tilt flash down a bit" flash unit?

I was wondering if anyone had come across such a thing, and where. My flash bracket broke and actually I quite like having the flash & diffuser just sit in the hotshoe on top, it's more portable without all the bracket and cable gubbins. But I'd love to be able to point the flash down a bit more. Bu...
by johan
Tue Sep 13, 2011 9:14 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: What's this for?
Replies: 7
Views: 1846

I am glad I am not 1mm tall.
by johan
Tue Sep 13, 2011 2:08 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: How to improve quality
Replies: 8
Views: 2042

I was very pleasantly surprised with the increase in contrast & quality once I decided to try a hood over my reversed lens using just a spare endcap with the flat end cut off. My diffuser is relatively large (about a 120 degree arc over lens, protruding almost in front) and the cap seems to have dea...
by johan
Fri Sep 09, 2011 3:29 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Polarising film over flash goes yellow
Replies: 2
Views: 1469

Polarising film over flash goes yellow

Hello, Doing some first experiments with x polarisation, I notice that the small strip of film that I stickytaped directly over the flash head appears to develop a yellowish haze/streak in the centre. I suspect that this is due to heat and that heat from flash destroys polarising film. So I should p...
by johan
Fri Sep 09, 2011 1:46 am
Forum: Beginners Macro
Topic: First pic
Replies: 3
Views: 1865

Ahhh, thank you so much DQE, rjlittlefield for taking the time! Really really really appreciated. I guess I got lucky with the light so yes DQE, that whole 'coming out the shadows' thing does make it look pretty. The lighting and background are really areas I personally want to work on so I was quit...
by johan
Wed Sep 07, 2011 2:32 pm
Forum: Community Members and Friends
Topic: Good Morning =)
Replies: 5
Views: 3670

Yes, thank you very much for that NU. It might surprise you to read that I have a reputation for, and also personally value, facts. Which is why I feel quite the prize prat. Entirely my own fault. I'm old and ugly enough to know better than to let enthusiasm get the better of me. I'm really not in t...
by johan
Wed Sep 07, 2011 11:19 am
Forum: Community Members and Friends
Topic: Good Morning =)
Replies: 5
Views: 3670

Well I guess this sums up my day, and entirely my own fault through an overenthusiastic attempt to participate - apologies , apologies and yet more apologies . I could grovel and scrape a bit more but I rather hope that's enough. I'm very embarrassed. I am rapidly learning that the things I thought ...
by johan
Wed Sep 07, 2011 9:29 am
Forum: General Discussion Forum and Community Announcements
Topic: micro app
Replies: 1
Views: 1079

micro app

Interesting wired article on a new app store app coming out. "Over 550 insects have been captured using Scanning Electron Microscope technology before being compiled on the Mini Monsters app, available for £1.99 on 12 September from Apple's App Store, in a venture which sees the SPL make their vast ...
by johan
Wed Sep 07, 2011 9:09 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Doli fly complex colour pattern on eye
Replies: 32
Views: 12189

Lauriek, that is correct, I should have read the article. "A Condylostylus sp. was photographed with a Canon EOS camera the built-in flash at a shutter speed of 1/200 s = 5 ms. Photographs in Fig. 1 were taken with an interval of ca. 20 s within a 4-min period. The fly, startled by the flash, was ab...
by johan
Wed Sep 07, 2011 8:16 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Doli fly complex colour pattern on eye
Replies: 32
Views: 12189

Re: Literature Search

... am a bit puzzled by the testing with a Cannon EOS. I am not familiar with this camera, but it puzzles me that the flash supposedly starts before the shutter is opened? Hello, Modern DSLRs have various flash modes one of which, on some models, is something known as "HSS" (high speed synch). This...
by johan
Wed Sep 07, 2011 3:53 am
Forum: Equipment Exchange
Topic: Flexible polarizing film
Replies: 6
Views: 4123

Very new here, and only learned about this technique a couple of days ago, but I came across this the other day and it arrived on my desk this morning:

Polarising Glass Stress Check Polarizing Film 21x15cm

£13.99 for 21x15 cm flexible film, should be good for a few flash output covers
by johan
Wed Sep 07, 2011 2:08 am
Forum: Beginners Macro
Topic: First pic
Replies: 3
Views: 1865

First pic

Hello, Very new to taking things above 1:1 (1 week new even) and first shot posted in this forum - taken last Sunday handheld using a reversed Pentax SMC-k 50 1.2 lens, with homemade diffuser on top at 1/8. I got lucky, this is the entire frame. If you click through you should be able to get to the ...
by johan
Wed Sep 07, 2011 1:53 am
Forum: Community Members and Friends
Topic: Good Morning =)
Replies: 5
Views: 3670

Good Morning =)

First of all let me say how glad I am to have found this site as it seems to me that the level of experience and knowledge far exceeds my own, as does the technical level. Fantastic! I'm just your average middle-aged guy who is a bit of a photography nut. I moderate on a large photography forum so I...
by johan
Wed Sep 07, 2011 1:19 am
Forum: Equipment Discussions
Topic: Takumar 50/4
Replies: 4
Views: 1819

Likely to be good but I can't say for definite - I use a SMC-k 50 1.2 reversed which was the successor range from Pentax but is based on the same optical design and it's stellar. But it also has a lot more glass than a 4 so can't say for definite. Thomas uses a 50 tak I think and his results arn't t...
by johan
Wed Sep 07, 2011 1:11 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: moth
Replies: 13
Views: 2973

No, just old. As they age, those hairs on top
come off. Moths in the moth stage don't have the longest of lifespans and this is one way we approximate its age.