Re: [APML]: measuring reciprocity failure

[bortech@OntheNet.com.au (Mark Bolton)]

Thanx for the replies guys.

I whole heartedly agree with the core of them in that - don't waste your 
time in the field doing it - do it at home as you could be taking "serious" 
photographs and it is more controllable at home.

I'm going to take my time reading the replies and tr to develop a set up at 
home in the darkroom. I'll keep you posted of the results.

I just got back from our dark sky site and there were bushfires everywhere. 
I got a few good shots of SMC and 47 Tucanae as well as the outer nebulosity 
of the LMC east of  the Tarantula Nebula. All the shots had a red cast 
however which at first i thought was the Royal Gold film, but in hindsight 
it was probably all the bloody smoke in the air. The seeing was good and 
these was no haze visible but i suspect what smoke haze was there would be 
reflecting the bushfires very faintly giving the photos the reddish cast. 
There wasn't enough to completely spoil the photos so i suppose it wasn't a 
complete waste. I also got some really nice fire shots throught the telephoto.

The most interesting thing was of approx 12 to 15 scopes that were there at 
least half and probably more were equatorily mounted and 90 % of those were 
taking photographs. How things have changed over the last couple of years 
when you couldn't move for dobs :-)


Mark Bolton

Border-Tech
Geotechnical Engineering Services
(Just a front for an astrophotography hobby)