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Use of resin filters with Schneider 72 mm


bruce_m._herman1

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After dithering for almost a year, I'm close to purchasing a Schneider 72 mm lens for my TK45. The reason for the dithering is that I've been bothered about simultaneous use of color correcting filters and the Center Filter. Brief background - I do landscape photography with transparency film. I own Lee resin filters and holders.

 

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I know about the Lee push-on filter holder, which allows use of resin filters on the lens itself. But the CF is wider than 100 mm, the width of the Lee filters. It seems that if one were to employ movements that cause the need for the CF, then the Lee system would not be adequate.

 

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Based on previous threads on this site, the range of opinion concerning the need for a CF on this lens is complete, from some who always use one, to some who never use one. I'm anticipating that I'll have to reach a decision concerning usage of the CF based on my own experience. My concern is that should I decide that I need the CF, then it seems that I'll have to adopt a filter system other than Lee's to do color corrections.

 

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Do any Schneider 72 mm lens users have any thoughts or proposed solutions for this apparent problem?

 

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Thanks,

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4x5.

 

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Ellis, are you saying that the limits to the movement for this lens

exceed what I'm likely to utilize in landscape photography?

 

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Based on some simple-minded geometric calculations, I'd say that

you're correct. But those same calculations suggest that I'd push

a 75 mm lens to the limit of its range with some aspects of my style,

particularly regarding foreground.

 

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Feel free to elaborate if you have the time. If you don't, I'm sure

that someone else will.

 

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Thanks,

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I am using the Cokin XL series , I have two lenses that need 105

filters, I shoot 8x10 and I have not had any problems with the

quality of the image when contact printing. I have not had to enlarge

these images but I looked at them with a 8x loupe and the sharpness

was indistinguishable from glass filters. The only problem is the

cost of the filters, But the range of effects is great, I recommend

thes filters highly.

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geometric calculations are one thing. Actual practice is another.

if you have a good 90mm, how often do youpush it to it's limits of

coverage. I have a 90mm f/4.5 grandagon and the only times i

push it to it's limits of coverage are when I'm either using it on my

6x17 V-Pan with a lot of rise or when doing architectural exteriors

of skyscrapers and am forced by necess esary proximity (to be

clear of obstruction to use full rise and an indirect tilt. For the little

landscape work I've done I've never found it to be a

limitation.<P>I rarely use a 75mm but what I see when I use it

out at the limits is a lot of angular distortion. In those situations

I'd rather use a 65mm and crop.

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<I>let me see if I can say that worse! (or: I should know better

than to try typing or thinking before having my mornig

coffee.)</I><P>Geometric calculations are one thing but actual

practice is another. If you have a good 90mm, how often do you

push it to it's limits of coverage? My standard wide angle is a

90mm f/4.5 Rodenstock Grandagon and the only times I push it

to it's limits of coverage are when I'm either using it on my 6x17

V-Pan with a lot of rise or when doing architectural exteriors of

skyscrapers and am forced (by necessessary proximity (to be

clear of foreground obstructions) to use full rise and an indirect

tilt. For the little landscape work I've done I never have found

myself to be pushing the limits of coverage on a 4x5 image.<P>

 

I rarely use a 75mm but what I see when I do use it out at the

limits is a lot of typical wide angular distortion. In those

situations I'd rather use a 65mm and crop. <P>

 

For their standard filter system, the kind that uses screw in

adapters, Lee makes a 105mm diameter wide angle version

adapter. You might have to special order it but it is available.<P>

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Ellis,

 

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I find my self on my knees a lot, not just praying for some success,

but when making wide angle photographs, too. The total angle between

the front and rear standards when I'm using my 90 mm f5.6 is often

10 degrees or about 0.1745 for those of you who work in radians. Add

a centimeter or two of rise or fall to adjust the composition (as

often happens when I've made the rear stadnard vertical to keeps the

trees looking like trees rather than a floral arrangement), and I'm

approaching both the lens' and my limits.

 

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So that's the basis of my concern. But I will admit that the

filtration issue is significant, and that failing a satisfactory

solution, I'll go to the 75 mm instead. I need to check on the 105 mm

option for the Lee filters that you mentioned. I'm reluctant to move

to Cokin filters because of the cost of switching systems. Life is

full of compromises.

 

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Thanks,

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I have used a 72mm for about three years. Te lens provides excellent

coverage on 4x5 for both landscape and architectural work. I annot

imagine a reasonable application resulting in failure. I have found

that the inability of the camera plus WA bellows to be a more

substantial drawback than anything else. The TK45S is such a

wonderful instrument and has so lage accessory "bin"so to speak,

that you should have no problems with that lens+camera+ bellows. As

far as filters are concerned,you will have no problems, is you use

approipriate equipment.

 

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Don't take this the wrong way, but from what Ihave read and seen

from fellow LF photographers, the secret, if there is one, is to

realize that you must use a high quality set of tools across the

image making spectrum. The lens and camera of your choice are second

to none, and no I don't own a TK45- I use two Wisner Technical

Fields, one the regulkar and the other the Pocket--. If you opt for

the CF and another filter system, in front of or behind the lens you

should be able to enjoy the best of all the worlds.

Bob

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