Hi All,
what do you usually say in a introduction thread? ASL? I'm from Germany, I got a PhD in Biology, I worked with a lot of different high-end microscopes, image analysis, etc. over the last decade or so and am currently employed by a manufacturer of laboratory equipment as an application specialist for imaging.
I own a super-zoom Bridge Camera (HS10) which I occasionally still use (e.g. for high-speed video) but recently purchased a Pentax KP. Why an interchangeable lens camera (APS-C) and why Pentax? My wife recently got a new 1" point-and-shoot which is so much better than my bridge (10 years of sensor technology improvements and a bigger sensor on top)... we tried to shoot long exposures of a meteor shower with my camera (and didn't get good results) and just on a whim used her camera on the tripod and it was a revelation. I tried some of the recent 1" super-zoom bridge cameras (which perform nicely but not that much better than my wifes compact) and thought about full frame (but too expensive and heavy glass repelled me). So I ended up in the APS-C micro-cosmos and among the medium- to high-end choices Pentax stood out because it had all the "nerd" features I always wondered why nobody would implement. Pixel-shifting the sensor to improve resolution? We do that in microscopy, why doesn't anybody... wait, Pentax does that. And the use it to compensate for the earths movement, too? Brilliant! Why buy an 50€ interval timer if it's a simple task for the camera electronics? Strike, point Pentax... I feel I am a bit limited with 3rd party lenses (and availability of used glass) but I feel I made a good choice feature wise with the bodies.
I already own for my Pentax KP:
"Sigma 18-300mm f/3.5-6.3 DC MACRO HSM"
Don't use it for macro work, but there is some perspectives you can't compensate for by walking (and I hate walking
and it's a nice every day lens I use when walking the park, a city, etc. It's goof enough for some close ups, portrait, architecture and has a good maximum reach for wildlife... as long as the light is good. I also used it with a 2x converter for bright night sky objects like the Moon or Saturn (yes, 6.3 with a 2x converter is very, very dark but Saturn is very, very bright but small, need the extra mm badly)
"Sigma 70mm F/2.8 EX DG Macro"
Love that one for things that aren't moving too much like pottet plants, my millipedes and I recently used it for biometric portrait shots for a new passport, too.
"Sigma 10-20mm f/3.5 EX DC HSM"
For Landscape and Panorama shots where I don't want to employ stitching or don't have the time to take 20 shots from a tripod. Those extra 8mm compared to the 18mm are fantastic.
All bought used and yes, despite I'd like a weather resistant objective, somehow no Pentax glass has made it onto my camera... strange but that's how it is for now.
Currently thinking about
:
Samyang 24mm 1.4 ED AS UMC or Irix 15mm 2.4 Blackstone or just using my 10-20mm f3.5 with O-GPS? For Panoramic shots of the milky way with some landscape included. Will probably open a discussion thread for that?
Let me know if you have any questions about image enhancement (wide-field de-convolution) or panorama stitching with focus stacking, have done that for thousands of microscopy images, will do that for some photos soon...