[LargeFormat] Intro; filter placement

[Les Newcomer]

If you've ever worn clip on sun glasses and have the sun hit at an 
angle, then you can appreciate why nearly all of my filters are put on 
the rear of the lens.

rear mount has some BIG advantages

1. there is no internal reflection, so if a gel filter isn't perfectly 
flat, you won't notice.

2. Rear elements are usually smaller, so, depending on what lenses 
you'll end up with, it will be cheaper.


There are some disadvantages

1. Polarizers are difficult to adjust when they are inside.

2. If you tend to put your camera in precarious places-- the middle of 
a creek/river with large, moss covered bolders,  then it's best to 
mount every thing up before you jump in rather than try to put a filter 
on in the middle of the river, this means that you'll have to focus and 
compose through the filter.


So I go both ways on this...  When I'm shooting for publication and am 
on firm ground with assistants and the what the color meter says is 
golden, then filters are put on the back.  When shooting sunset/sweet 
light and filters have to be constantly adjusted, then they go on the 
front.   When I'm out in the back country with my 5x7 2d and it's just 
me and my film, I'm usually shooting black and white and have a green 
red and yellow filter in my pocket... They get hung on the front.


On Friday, August 1, 2003, at 08:16  AM, David Galway wrote:

>
>
>
>> Hi Folks:
>>
>>
> First, an introduction: based in beautiful Go Home Lake in the Township
> of Georgian Bay, Ontario, Canada. Self-taught, I have shot since my
> pre-teens, and spent 10 years as a photojournalist in three small city
> daily papers. Began printing seriously during my years in Thunder Bay,
> on Lake Superior's north shore, one of North America's unsung
> wildernesses. Have travelled extensively through the USA and across
> Canada on photo-expeditions, shooting and hitting any gallery I could
> find. Was given an old Ansco 5x7 by an old photographer about 10 years
> ago, bought a 9 1/2 Gold Dot Dagor in an Ilex 3 with a tax return. At
> this minute I am anxiously awaiting the mailman to deliver a Kodak
> Master View 8x10, a couple of weeks overdue in shipping ...
>
>
> And here's my question: I have already received the lenses that came
> with the kit. I am going to send the 14" Red Dot down to Grimes to have
> the Gold Dot mounted in the 14's oh-so-sweet Copal 3. I also want the
> Grimes guys to set me up for filters ... I understand one can mount
> filters in front of or behind the lens. (I used to hang my 35mm filters
> off the Dagor in the 5x7, behind if the camera was pointing down, in
> front if I had it pointing up ... !) Is there any web literature on 
> this
> subject? Any advice?
>
>
> It's been fun reading this list for the past few months; it's amazing
> how the internet has brought together international communities.
>
> regards
>
> David Galway
> Twp. of Georgian Bay
>
>
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