Please excuse if multiple copies of this come through. My friend upgraded the server that he hosts my account at, and things have been completely hosed and unreliable for the past week. All morning mac mail has been insisting that the smtp server is offline, and hasn't let me correct that.
The night before last I had a whole series of photos of a musician front focus on his microphone, despite it being no where close in the frame to the focus point. The light was reasonably bright, but it was tungsten. So, tonight, being the nerd that I am, I decided to test how color affects focusing. I took assorted gels that I had around, and also a couple of green bulbs set up a few test setups. As far as I could tell under red light the K-5 did front focus. It also seems to front focus under blue light. For this run of the test. I tried to defocus the lens between each shot. Shot using tungsten, blue gel, yellow gel, CTO gel, red gel, green incandescent, and a green CF bulb. Focus point set on the focusing chart. I haven't done a test yet to determine whether it just front focuses under low light, or whether it front focuses because of lack of light in the green channel. ISO 80, 77/1.8 wide open, shot at 1.8, attempting to keep exposure even. I also processed each shot both as color and black and white. Crops: http://www.flickr.com/photos/ellarsee/sets/72157632954496070/ Crops on fluidr http://www.fluidr.com/photos/ellarsee/sets/72157632954496070/ Uncropped: http://www.flickr.com/photos/ellarsee/sets/72157632950174733/ On thursday night we had me with the K-5, Danielle with a D700, Michael with a 1D4 and Scott with an OM-D. It'll be interesting to compare everyone's photos. Mine, I'm afraid, did not turn out well. Apparently both Danielle and Igor think that I obsess a bit too much on monopods for low light work. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
