Re: Autoexposure Follies? (was Re: Nikon Data Backs

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 16 Jul 98 at 9:30, pico wrote:

> Willem-Jan Markerink <w.j.markerink@xxxxx>
> > [...] my favorite shooting conditions, standing on a ski slope in a nasty
> >-20C wind, simply forces me to very fast handling, otherwise my
> >freezing fingers start to protest....the thought of fiddling with 
> >filters in those conditions, with freezing fingers, is a nightmare on 
> >its own as well....8-))
> 
> When it is convenient for you, perhaps you could share some cold-weather
> photography tips with us. Two that frustrate the heck out of me is breaking
> film and static. Another is lenses freezing up, shutters going slow. (Temps
> of -20 below zero farehneit and colder.) I use a large camera, so putting it
> under my coat is not an option!

Sorry, never had film break, and this is with both motordriven EOS-1 
and a film-abusing Horizon 202 panorama camera (not impossible to rip 
the perforation even in normal temperatures if you go wild on the 
lever, especially near the end of the film).

Also note that HIE has a different carrier than most consumer 
films....thin, but quite tough. Might as well have very good cold 
properties for all I know....at least that would be one of my 
requirements if I designed an aerial film....can't be good if you 
shatter film in a bulk-roll camera loaded with 30 or more meters of 
film....:-)) 

I also guess that electro-magnetic shutters are *far* less influenced by
cold temperatures, simply because the lack of gears and springs
means lack of temperature-sensitive lubcrication....
Never had lenses freeze up, other than snow dust melting on glass 
and refreezing....but I never expose my gear to the 
cold/humitity/condensation/sublimation longer than a few minutes 
either....once you pull out a tripod, an entire different scenario 
takes place....

Sorry, seems the freezing fingers are really my only problem....:-))
And ohboy did they freeze....never had them sting so painful in my
life as with those 'cabin-lift shots' on my homepage....but the
breath taking scenery and sunset make it all worth it (yup, I am one
of those fools who take the *very* last lifts and even later
runs....the best sunsets are high up in the mountains, in the middle
of winter....and only the last lifts and runs of the day take you 
there....wouldn't be the first time that resort-personell is waiting for 
me to finish shooting, and clear/close the slopes after me....8-)) 

Btw, my range of potential problems might expand in future, once I 
manage to take some medium format gear with me skiing. Guess it's 
time to start looking for a LowePro Super Trekker....or a Yak....:-))



- -- 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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