Re: critique on infra article and more questions

[George L Smyth <glsmyth@xxxxxxxxx>]

--- "Christina Z. Anderson" <tracez@xxxxxxx> wrote:
> Thanx for the interest in critiquing my infrared article.  I received about
> 25 requests for it (was very surprised)(whew) and have received back about 4
> critiques of it.  Please continue to send me back your input.
>      Bertha raised an interesting question.  Does putting a red filter on
> your lens INCREASE the amount of infrared light available to the film?  From
> what I understand of filters this is not so, it just decreases the visible
> light it blocks.

I'm not sure how it would increase the infrared radiation.  However, it would
increase the proportion of infrared to visible light.

>      Is there truly no difference with Konica with the 15, 25 and 29 filter?

I don't know about the 15, but I've not seen a difference between the 25 and
29.  If someone has, perhaps they could post the results on a Web site and
point us to it.

>      Do fluorescent lights in the darkroom that take a while to subside
> truly not fog infra film if you turn them off and immediately start
> developing, e.g. in trays in the dark?

I have always used tungsten in my darkroom.

>      Should I not even recommend Rodinal as an infrared developer because
> the grain is golfball size?

This question probably only pertains to HIE, as I use Rodinal to develop Konica
120 size and HSI.

Recommend it if that is what the photographer is going for.  It's not my style,
but the great thing about HIE is that it can be shot in so many different ways
and offers so many different results.  The only WRONG way of doing things are
those which do not produce the intended results for that individual.

BTW, instead of photocopying the information, why not just put it on the Web
and point your students to it?  Hopefully, they have Internet access
(unfortunately, fewer than 50% of the households in the US are there so far).

Cheers -

george

=====
Handmade Photographic Images
http://members.home.net/hmpi/

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