Re: Sprocket shadows & little white spots

[aeophoto@xxxxxxxxxxx]

On Thu, 09 Apr 1998 09:39:00 +0100, Ian wrote:


>Sounds like a development problem to me.  Dust tends to give dark spots
>on the negative which print light; what you describe sounds like very
>small areas of undeveloped film.  Are you using a liquid or powder
>developer?  If the latter, is it possible that there are specks of
>undissolved powder in the developer?  In either case, is it possible
>that there are air bubbles being introduced as the film is developed? 
>I'm a "stirrer" rather than an "inverter" when it comes to agitation;
>also, I've found that 10 seconds every minute is plenty of agitation.
>

Liguid, not powder.  I am an inverter; but I never do more than 10
seconds every minute of agitation.  Usually less than that.  The last
time this thread went around  - I think some people suggested less
agitation at the beginning of development as opposed to the end - I
probably do the exact opposite of that - which I am going to rethink.

>Also, your spots aren't in a regular pattern, are they - I know some
>cameras have dimples in the pressure plate which can cause problems with
>IR film.

Not in a regular pattern.  Also I developed 3 rolls at once and they
only showed up on one roll.  Showed up on 5-6 images on the roll.
>
>You could always try good old Farmer's Reducer to bleach your black
>spots, and then spot them back to the correct shade of grey.

I had not thought of that.  I'm not a big fan of Farmer's Reducer, so
I tend to discard it as a possibility.  I live close enough to the
place where I took the picture that I'm thinking of reshooting.  I
don't usually reshoot landscapes, but . . .

>
>
>Laurie White's book is certainly available in the UK - I bought one from
>Blackwell's by mail order less than a month ago.
>
>
>Hope this helps,
>
>-- Ian.
>
Thanks.

Angela
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