Frogherder wrote:
More Further information.
I've received a copy a data sheet from the manufacturers of the welding glass and have transcribed it into an excel spreadsheet. The gist is that each glass has a band of acceptance(for it's intended purpose)

#10 has a percentage pass of 0.0085% to 0.023% in the visible spectrum
it has a percentage pass of 0.0003% @313nm and 0.0006% @365nm in the UV
it has a perentage pass of 0.1% between 780-1400nm in the infra red

If we ignore all but the visible light (can we?) then a #10 equates to between 12 and 14 stops.

If you'd like a copy of the spreadsheet drop me a PM or advise me how I might copy into a thread window

regards
Bernard

karma mechanic wrote:

The sensor movement is also discussed for the K-7 in regard to its possible interaction with blur induced by shutter acceleration in this article - complete with the pictures that are omitted in the patent application above. See section 5.5 in particular.

DrOrloff wrote:
That's an excellent choice PE. I would recommend that you also budget for a good sturdy tripod as it is quite heavy. This one is quite good, I think its a French make:

johnriley wrote:


Thios thread is not turning into a war zone so don't worry about it, it's just a discussion.

Smeggypants wrote:
This appears to be a hit and run thread too. OP hasn't ome back to respond to his responses.