Post Your Photography Here #2
May 18, 2011 at 12:15 AM Post #7,951 of 15,743
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artmay08/mm-bubbles.html
 
 
 
 
 
 
Turns out it is a whole photography subculture. Who knew?
 
May 18, 2011 at 2:51 AM Post #7,952 of 15,743
5731882247_69e6c8bbdb_z.jpg

 
May 18, 2011 at 3:01 AM Post #7,953 of 15,743
Any camera that can sync to like 1/2000 or so. Check the EXIF, it will tell you what shutter speed (most can do this anyway) and what lens is used and what aperture. I can tell you right now that You'll need to be ready, have a pretty good plane of focus ready, or just be lucky. Timing, my friend, is key.
 
Quote:
Not mine I'm just curious here, found this. what kind of camera can take this kind of photos?
 
 
 
Its a soap bubble.



 
 
May 18, 2011 at 8:12 AM Post #7,955 of 15,743
Flash will also help, but you don't necessarily need it. Plus, to sync a flash at that speed, you won't use regular syncing systems. Eventually, the shutter delay will cause problem, not the flash.
 
Anyway, got a reverse mount adapter to turn my 50 1,2 into a 1:1 macro animal! It costs about 20$ USD. This photo isn't sharp, but it was taken indoors at f/8 or f/11 and at 1600 ISO, a number the D200 isn't that good at unless in bright daylight. The shutter speed was 1/15s.
 
5732959192_81a5214140_b.jpg

 
May 18, 2011 at 8:22 AM Post #7,956 of 15,743
May 18, 2011 at 10:20 AM Post #7,957 of 15,743


Quote:
Flash will also help, but you don't necessarily need it. Plus, to sync a flash at that speed, you won't use regular syncing systems. Eventually, the shutter delay will cause problem, not the flash.
 
Anyway, got a reverse mount adapter to turn my 50 1,2 into a 1:1 macro animal! It costs about 20$ USD. This photo isn't sharp, but it was taken indoors at f/8 or f/11 and at 1600 ISO, a number the D200 isn't that good at unless in bright daylight. The shutter speed was 1/15s.
 



The theoretical limit for xenon based flashes is about 1/40,000th of a second, which is obtainable by limiting the exposure manually—1/64 or 1/128 are usually minimum. If you then use your flash as the only source of light, effective exposure length can then be as short as 1/40,000th of a second. Neat, eh?
If you want even shorter exposure you'll have to use an air gap flash.
 
Have you measured the magnifying power of the reverse lens, or is there an easy way to calculate this?
 
 

 
May 18, 2011 at 12:54 PM Post #7,960 of 15,743
Thanks :)
 
Take a picture of a measuring tape tape or similar at the lens' close range limit, with the tape at right angles with the two short sides in the frame.
Divide the number of milimetres that fits inside with 23.7, and presto, you've got the magnification power!
 
I just did it with my DP2 and close-up diopter:
 

 
Result is ~.5x, or 1:2.
It's not a super precise method, but it gives a good approximation.
 
 

 
Quote:
Homegrown apple mint (mentha suaveolens) is the best in a Mojito. I declare the outdoor drinking season open. :)

 
You go on enjoying it.
 

 
 :frowning2: 
 
 
May 18, 2011 at 9:14 PM Post #7,961 of 15,743
All is well with that method - I'll try it out soon. I will also probably try to purchase a Canon close-up lens and maybe some extension tubes (eventually) to retain my focus ring. I love the reverse mount, but it is HARD to use! Cheap, though.
 
Okay, it is exactly 21 mm across the focal plane from left to right, and my sensor (D200) is 23,6mm long (according to Wikipedia). I did the maths and got 0,88, which I assume, is the relative size of the final image in comparison to my sensor, so slightly more than 1:1.
 
 
 
May 18, 2011 at 9:27 PM Post #7,962 of 15,743
Well, outdoor drinking season officially kicked off in Japan like two months ago with Hanami, or cherry blossom stupour (meaning getting drunk under the cherry blossoms). But, I'd kick back with a mojito. That looks delic!
 
Quote:
Homegrown apple mint (mentha suaveolens) is the best in a Mojito. I declare the outdoor drinking season open. :)



 
 

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