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Forum: Pentax News and Rumors
02-17-2016, 09:42 AM
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Did you say changing lenses in the dark? Reminds me of a song...
"I get up in the evening
Gonna shoot my camera late tonight
Frustrated by morning
Wasn't able to change my lens, no light.
I’m just needing some help now.
Don’t wanna drop my lenses on the floor.
Hey there Pentax, can you help me a little more?
Now go shoot your photos
Because this new camera’s got a spark.
The K-1 from Pentax
Will let you change lenses in the dark."
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Forum: Pentax Full Frame
01-29-2016, 05:43 AM
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You're hopes have been realized!! sorry :lol:
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Forum: Pentax Camera and Field Accessories
12-02-2011, 03:42 PM
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You rang? Here is the article: https://www.pentaxforums.com/forums/pentax-lens-articles/152336-cheap-macro-b...lose-work.html
Super-macro is micro. Beyond about 5x, you really should use a microscope. Yes, you can reach 10x with various gear and techniques. But camera lenses usually aren't designed for such work.
1+3: Extension (bellows and/or tubes) are the cleanest way to go macro. To reach 10x with a 28mm lens, you would need 280mm of extension. It gets clumsy.
2: Mount-reversal doesn't magnify by itself, it just forces you to work at the lens' register, which with Pentax is ~45.5mm. You still need extension for magnification.
4: Macro and close-up strap-ons are OK for certain close work but are generally not optically good -- except Raynox. See the RAYNOX CLUB here for fine examples.
5: The simplest way for ultra-macro is with reverse lens-stacking. Stack a 30mm prime on a 300mm prime for 10x magnification. Working distance is ~45.5mm.
That's the overview. For more, see the article. Have fun!
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