JamesT

Asking a bit much I know. I wondered if the scale from the corrosion would give away the size of the beast. It is a Rocketdyne-F1, the power unit in the first stage of the Saturn-V at the Alamogordo Space History Museum. The extended nozzle is detached, and a few yards away. Here are a couple of more conventional views: Actually I expected it to be a bit bigger. There was also a British rocket on site at the time (Feb 2013) on a fundraising tour I think.

Black Pearl has it :-) Bonus for $0.00 - what sort?

What is this? Just one clue: It was not taken in the UK - in fact I doubt if there is one in the UK.

POINT

Oops -- double pasted the link, here again in case it doesn't work like that https://gimpguru.wordpress.com/Tutorials/

For those who prefer text/graphical tutorials, there's a major collection at: https://gimpguru.wordpress.com/Tutorials/https://gimpguru.wordpress.com/Tutorials/ Some are a bit old (referring to features that have been superseded), but none-the-less a useful resource.

I am a physicist, my field is the heliosphere. Inter alia, I'm interested to relate photographic lenses to what our optical engineers do with coronagraphs & heliospheric imagers.

Yes, I ordered that one and also a 2nd edition of his "Applied Photographic Optics" (3rd edition is a ridiculous price <150 pounds). Should come early next week.

Just saying hello from Wantage. I'm very definitely an amateur in photography, my main photographic interests are birds & other wildlife. Though I want to do a bit more landscape photography (and have recently resurrected my old 35mm SLR for that, especially B&W). James

Thanks for your comments. I'm really not at all keen on video tutorials, and I'd seen a reference to one of Ray's books in another tech book. Since the one referenced was on Alibris for less than 1 pound, I think it's well worth the risk..

I hope this is the right place for this. Is anybody here familiar with any of Sidney Ray's books on lenses? And if so do you have any recommendations (or indeed suggestions of books by others)? I'm looking for something that goes into a bit more than the usual generalities. Most photography books skim over the physics, which most physics books only really handle simple lenses, and perhaps achromats and apochromats.