Re: [APML] 4x5 astrocamera (again?)

["D. Kodama" <kodama@alumni.caltech.edu>]

Wei-Hao,

Thanks for the info on 4x5 film choices.  I recently picked up my own
combo 4x5" and 6x9cm setup (Mitsuboshi) so the info is appreciated.

Regarding E100SW, awhile back I tried it in 4x5 format but found that it
had a tendency to go to yellow-green on long exposures.  I thought the "W"
(warm) version of E100 would have better red response for nebulosity, but
the green seems to overwhelm things.  I'd be interested in hearing if
anyone has had a similar result.  I just shot a couple of test frames
before becoming too busy to proceed further.

By the way, one of the "downsides" of 4x5" is the size of the digital
files.  My scanner can only do 2500 DPI, but at that resolution a 48-bit
TIFF file is 750,000,000 bytes!

Dave Kodama


> Date: Thu, 6 May 2004 15:27:29 -1000 (HST)
> From: Wei-Hao Wang <wang@IfA.Hawaii.Edu>
> Subject: Re: [APML] 4x5 astrocamera (again?)
> To: astro-photo@seds.org
> Message-ID: <200405070133.i471Xml07592@galileo.ifa.hawaii.edu>
> Content-Type: TEXT/plain; charset=us-ascii
>
> Hi Bobby,
>
> Yes, E100S is discontinued.  Now only 4x5 format (perhaps some
> 120 format E100SW) is available.
>
> Wei-Hao



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