I use that facility quite frequently when shooting photographs of flowers like this.

I guess that the gap between the lens and the filter is sufficiently leaky to let warm wet air in whilst the thing is still cold enough to cause condensation to form. (Cold air will be drier and less dense, warm humid air may be able to exploit a pressure gradient) The individual lens elements and the lens/body seal may be more air-tight. I haven't seen it happen too often (only on cold winter days at Wisley) and since I followed advice here not to use UV filters, it doesn't happen at all! (OK, it can't happen if I don't have a filter on!)

Most botanical house have a graduation from temperate to hot and dry to hot and humid. I try to go through in that order so the camera gets a chance to warm up before being exposed to humidity, which helps to reduce the problem of condensation forming on the camera. Also I don't use a UV filter as condensation seems to form more easily on the inside of the filter than it does on the outside of the lens (I've never had a problem with condensation inside the lens)

Dan,

The uptake of Vista amongst corporate bodies has been very slow. It still has far too many problems to be considered seriously. It's a bit like Windows ME - Microsoft seem to bring out a real dog every once in a while. Companies like Dell have realised this and allow customers to "downgrade" to XP.

Windsor? OK, west of London, but just off the M25 with a Castle and a river to photograph.

[opinion]

I'm, currently watching the BBC TV series The Genius of Photography which apart from showing that the BBC can still make excellent old fashioned documentaries, serves to remind that a camera is merely a tool at the disposal of the photographer, who then uses that tool as creatively as they like. I think that as long as the resulting image is not used fraudulently nor is fraudulently mis-represented, then that's fine by me.

Photomanipulation to create images is a wide and complex subject from cropping, dodging and burning, use of filters, to modern advanced digital techniques, which has a history as long as photography itself. It isn't going to go away. Have a look around the photos at Ephotozine and I'll bet that very few pictures have not been touched in some way.

Serious competitions expect the photographer to declare any alterations, but I don't think the intention on this forum was to have a serious competition!

I never used a darkroom, my photography fun used to end when I took the film to the chemist. Now I have as much fun after taking the pictures as I do whilst taking the pictures, and I suspect this is increasing true for a lot of people.

[/opinion]

I've been tarting up my CV before sending it to the FA. After all I must be able to do a better job than Mr Maclaren



and a £2.5 million pay-off for failing is too tempting to resist!

Bit late I know, but I took my eye off the ball for five mins! Well Done Lilly, well done everyone else. Thanks John. That was a tough job!

One from a while back, and which had some help from Matt on the processing. If I win maybe we should split the prize?

DS & 16-45mm DA 1/8 @ f13 @ ISO400 Cokin IR filter, handheld.

I'm pretty sure it was discussed around here some time ago.

Edit

here actually

Scroll down and Rodger describes the procedure.