January 12th, 2017


GIP - Caffeine!

One of my Xmas presents was this nice mug, made of borosilicate (Pyrex) glass - they're a bit pricey at around £10 and up, considering you can get a beaker that size for under a quid, but the handle makes this more convenient than any beaker, and it does have a useful logo to remind you of one of the fundamental building blocks of the universe - the caffeine molecule. Larger photos behind the cut:

Collapse )

I also got some nice packs of coffee. Excellent!
marcus 2013

Another weird lens

I picked up a job lot of filters and hoods, which included an Itorex 50mm f40 (and yes, I meant 40, not 4.0) lens. It's basically a very simple pancake lens which is about f2.8 and fits into a T-mount, with a removable disc that fits between the elements to stop it down. The disc was missing but I cut one from the black vinyl wallet an old multimeter came in, with the diaphragm burned through as a pin hole. Doesn't focus, but doesn't need to because the tiny aperture gives huge depth of field (but of course means exposures are VERY slow), but even stopped down it isn't incredibly sharp. Here's a quick test with and without the stop disk:

Collapse )

Unfortunately the T-mount it came with is the old Contax-Yashica fitting, which is fairly useless, but I had a spare Nikon mount to try it.

I don't think I'll be keeping it, but it was fun to play with.

This entry was originally posted at http://ffutures.dreamwidth.org/2046652.html. Please comment here or there using OpenID.