Rime

[chauncey]

Supposed to have freezing rain tonight and want to get some shots tomorrow morning.

Any setting suggestions for a 5D with a 24-105mm ISL?

[braduardo]

Walk carefully...

[JeffreyG]

Unfortunately a macro lens is best for the ice detalis, so look for larger scale ice structures in the trees. Shoot close and wide I suppose.

[JeffreyG]

Couple more for fun. I think you could shoot these with the 24-105.

[chauncey]

Are you suggesting that using my 70x200 ISL might serve me better?

[poloman]

I think that you will be able to isolate objects against a background better with a long lens.

[JeffreyG]

You were right about the freezing rain Chauncey, it's awful out this morning. It's not super thick on the plants though.

The shots I posted are from January 2007. We had a bad ice storm then. I was out of power for a couple days.

[chauncey]

Am in Rochester and was up at six on Sunday morning, waited 'til eight and said "s**t, went back to bed.

[Bill Boehme]

FWIW, rime ice is frost type icing that forms directly from vapor to solid phase. Freezing rain produces glaze ice (structural ice to pilots) -- a solid clear glaze produced when going from liquid to solid phase. Now, get out there and take some pictures! ;) (Remember, if you don't have pictures, nothing happened)

[JeffreyG]

I wondered what the heck "Rime" meant in the title. I always thought the picture below was "hoare frost". Is this rime?

[poloman]

As far as I know rime is a coating of similar consistency that is flatter with more coverage.

[poloman]

http://en.wikipedia.org/wiki/Hard_rime

[chauncey]

T'would appear that I was thinking of "clear ice", however I would have utilized rime as well.

I bow my head and ask forgiveness for this egregious misuse of the language. :)

[poloman]

It is funny how we never answered you question but instead concentrated on "rime". :)

[20droger]

Rime, also called rime ice, is an opaque coating of tiny white granular ice particles caused by the rapid freezing of supercooled water droplets on impact with an object.

Hoar, also called hoarfrost, is a covering of minute ice needles, formed from the atmosphere at night upon the ground and exposed objects when they have cooled by radiation below the dew point when the dew point is below the freezing point.

As to using a 5D and a 24-105L in very cold weather, there should be no problem when you first go outside, as the camera and lens will be warmer than the air.

If you are ouside for a significant time, long enough for the camera and lens to become quite cold, you may experience short battery life. Always carry extra charged batteries in a pocket under your coat, so they will stay warm.

When you come back inside, even after a short stint, the camera and lens will be colder (maybe much colder) than the inside air. This can result in condensation on the camera and lens. This condensation can occur inside the camera and lens, as well as on the outside. Therefore, it is a good idea to place the camera and lens in plastic zip-lock bags before coming inside. Force the excess air out and zip the bags. Then, after coming inside, leave the camera and lens in their sealed bags until they've had time to warm up. This will prevent condensation.