Olympus-OM
[Top] [All Lists]

[OM] Re: Low light photography - oops! here it is again with the .jpeg

Subject: [OM] Re: Low light photography - oops! here it is again with the .jpeg
From: "Orin Keplinger" <orink@xxxxxxx>
Date: Wed, 10 Oct 2007 12:20:54 -0500
Sorry, John:

How about chemical "Glow Sticks"?

I just finished some astronomy lens tests with a series of wide angle OM 
f2 lenses. The moon was about 40% full and 30 degrees above the horizon. 
I was taking 1 minute exposures on a tripod with ASA 800 color film with 
the moon behind me. It was enough light to make the sky blue and the 
cornfield and telephone pole I used for reference look almost perfectly 
normal. I was trying to find the "sweetspot" lens to use for maximum sky 
coverage while still being able to show meteor tracks. My guess is that a 
glow stick or two in a mine would give you plenty of light for timed 
exposures from a tripod.

Attachment - I have included a color 1.1 M .jpeg file of the big and 
little dipper as an example. This is sampled down from 70 Meg tiff.

As Ever
Orin Keplinger
near Chicago


-----Original Message-----
From: JOHN DUGGAN <john.duggan10@xxxxxxxxxxxxxx>
To: olympus@xxxxxxxxxx
Date: Wed, 10 Oct 2007 16:54:03 +0100 (BST)
Subject: [OM] Low light photography

> 
> Hi all. Some totally on topic advice needed :-)
>     In a few weeks I have the opportunity to take photo's in a mining
> museum. 
>  There is no problem regarding above ground photography It is
> encouraged and it is a half hour drive to repeat photo's as many times
> as I need to get the results I am looking for. (digital and film)  and
> admission to all museums is free.
>    The icing on the cake is that I have been given permission to take
> photographs underground (this is VERY rarely given...I have been trying
> to  get this for years)
>     Even as a mining museum it comes under various mines and factories
> acts. This means that No batteries or electrical equipment is allowed
> undeground (explosion risk) "wind up" mechanical watches only.
>   This means obviously no digital cameras, No elecrically dependant
> 35mm film cameras. No metering systems no flash...and of course very
> little light underground.
>   How do you take a photo of a black cat in a coal cellar?
> 
>    First ideas.. OM1n or OM3 or Leica M6..batteries removed. 24, 28 or
> 35mm lens.
>  Tripod, fast film..but how fast? Black + white
>   At pit bottom, and various places underground there is a low level of
> electric light..and of course I will have an electric head lamp - as
> will my guide.
> 
> I intend taking a few Guided trips underground first to try to spot
> possible photographic opportunities before hand but any ideas or advice
> will be gratefully appreciated....I might only have one opportunity for
> this.
> 
> 
> Regards
>   John Duggan,
>      Wales, UK
> 
> 
>       ___________________________________________________________ 
> Want ideas for reducing your carbon footprint? Visit Yahoo! For Good 
> http://uk.promotions.yahoo.com/forgood/environment.html
> 
> ==============================================
> List usage info:     http://www.zuikoholic.com
> List nannies:        olympusadmin@xxxxxxxxxx
> ==============================================


-- No attachments (even text) are allowed --
-- Type: image/pjpeg


==============================================
List usage info:     http://www.zuikoholic.com
List nannies:        olympusadmin@xxxxxxxxxx
==============================================

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz