Re: [APML] Developing E200

[KGKIRKLEY@aol.com]

In a message dated 8/9/02 9:53:27 PM, thurmond@pvtnetworks.net writes:

>Jerry,
>Thanks for the suggestions.  I'm quite sure I'm following Jobo's 
>procedures, including tank warmup time and bath temperature.  It could
>
>be that I need to push the film in the first developer to make it work
>
>right.
>
>I will certainly shoot a couple of rolls in daylight including gray 
>cards, Jobo cards, and Macbeth cards then develop one myself and one at
>
>the local non-Q lab.  Maybe even a third roll that I will have my old 
>lab in CA develop.
>
>Interesting you mention the skies.  I've shot a roll at f/4 (one stop 
>from open) using my Rollei 80 mm lens and it looks pretty good, though
>
>I've not printed from the film yet.  In that exposure, the veil looked
>
>good.  I'm curious as to whether E200 doesn't work without something to
>
>bump it into its linear range.  Other than that, it is a great film, 
>though overly red sensitive:
>http://www.rickthurmond.com/6992.html
>while insensitive to green and blue lines.  My astrophotography setup is
>
>a C14 with a giant easy guider reducing it to about f/7, though my 
>camera is closer than Lumicon assumes so I'm probably a bit slower, like
>
>f/8.8.  Another experiment would be to reshoot the exact NGC6992 I shot
>
>before and develop it myself and send it out to a lab.
>
>I shot that part of the veil (6992) at Calstar last year, under skies 
>nearly as dark as NM.  The part I'm shooting now is 6960, which looks 
>just as bright around here.  Maybe it contains more OIII which I can see
>
>and less HII which the film can see.
>
>Once I'm sure my processing is dead on, I want to experiment with 
>Ektrachrome 100VS which is available in 4x5.  If it works it is flatter
>
>in my camera than E200-120.
>
>
>--Rick Thurmond

Hi Rick:
I've been 'watching' your post and have a comment or two.
I am of the opinion that you need to push process E200 at least two f stops.
This is done by increasing the first developer time.
When I began using E200 a few years ago I didn't want to push it because 
pushing lowers the D Max which is the density of the unexposed part of the 
image. However, for astrophotography, lowering the D Max can be a good thing. 
The sky background will be a dark gray instead of black which makes scanning 
the image much easier (assuming it is to be be scanned). I now push my E200 1 
1/2 stops on exposures of 1 hour with an AP155 f7.

I've tested 100VS and I didn't like it. It seems to suffer from serious 
reciprocity failure. It works great for star trails because the very 
saturated (VS) colors bring out star colors well.

So what camera are you using......?

Kent Kirkley

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