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Archive 2009 · Canon 17 TSE filter tests
  
 
Roy Pertchik
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p.2 #1 · p.2 #1 · Canon 17 TSE filter tests


Is anyone aware of a square circular polarizer large enough to be used this way? On B&H, I see some large cinematography polarizers in $500 range...
I assume the circ pol is necessary for the exposure to read right; focus is not an issue, of course.

(I don't suppose there is any hope of holding my 86mm circ pol, from my 16-35 soon to be sold, in front of this lens...)

Edited on Sep 18, 2009 at 01:32 PM · View previous versions



Sep 18, 2009 at 01:23 PM
jerrykur
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p.2 #2 · p.2 #2 · Canon 17 TSE filter tests


Wonderful work.

Just curious, how useful do you find the holder. I have been hand holding my ND Grads and had good results.



Sep 18, 2009 at 01:31 PM
Doug Ball
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p.2 #3 · p.2 #3 · Canon 17 TSE filter tests


The holder is essential as it blocks light from behind the camera when you use the 17 with the protruding element. When handholding a filter on the 24 TS-E, for example you can place it against the front of the lens, but this is not possible with the 17 and it picks up reflections on the filter from the rear.


Sep 18, 2009 at 02:35 PM
n0b0
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p.2 #4 · p.2 #4 · Canon 17 TSE filter tests


The quest to find a filter solution for this lens reminds me of trying to diffuse the light from the MT-24EX.

I look forward to seeing some excellent result as I too, am waiting for my copy of this lens.



Sep 18, 2009 at 02:49 PM
Roy Pertchik
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p.2 #5 · p.2 #5 · Canon 17 TSE filter tests


Thoughts about the appropriateness of these filters:

5x5 Circ pol
http://www.bhphotovideo.com/c/product/474013-REG/Schneider_68013159_5x5_Circular_True_Polarizing_Water.html

Linear
http://www.bhphotovideo.com/c/product/474012-REG/Schneider_68013059_5x5_True_Polarizing_Water_White.html#features

I can rig up a holder for 5x5. A few questions:

1. Is "circular" necessary for this manual focus lens? I like getting focus confirmation beep, but that only occurs when the lens is not shifted or tilted anyway. Is a Circ necessary for the ttl exposure reading to be correct?

2. These Schneider lenses claim they are "true-polerizers" and are 12x's more effective than others.. whassup with that?

Any recommendations will be apreciated :-)



Sep 21, 2009 at 12:30 PM
john_edwards
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p.2 #6 · p.2 #6 · Canon 17 TSE filter tests


Not sure I'd ever do this as I still have yet to order the 17 but this is an interesting thread and I thought I'd throw this out there, especially for Roy.

Since you need to cover the air gap behind the filter to stop reflections anyway, why not use something to hold the filter thats mounted in the camera's hot shoe. I'm thinking of a small piece of flat aluminum bar mounted onto a Wein hot shoe that extends past the end of the lens. If you could mount the filter onto the end of the bar and place a small piece of plastic on top to cover the gap it would do two things. Protect the lens itself since nothing touches it and also allows you to manual focus with the filter in place. You would have to be careful when mounting and un-mounting the apparatus. I'm sure someone with machining experience could do this rather easily.
John



Sep 21, 2009 at 05:40 PM
Roy Pertchik
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p.2 #7 · p.2 #7 · Canon 17 TSE filter tests


Yes, John, I was thinking of something projecting from the camera mount, but I like your idea better. Then, I thought I'd just drape a small black cloth over the whole thing, perhaps with an opening with a square frame sewn in, to slip onto the filter.

I'm talking to Schneider Optics about the right filter.



Sep 21, 2009 at 06:50 PM
Roy Pertchik
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p.2 #8 · p.2 #8 · Canon 17 TSE filter tests


Does anybody have an opinion about circular vs. linear polarizer for this manual lens?
(Think I'll post the question over on alternative lenses too.)



Sep 21, 2009 at 07:04 PM
Pixel Perfect
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p.2 #9 · p.2 #9 · Canon 17 TSE filter tests


Roy Pertchik wrote:
Does anybody have an opinion about circular vs. linear polarizer for this manual lens?
(Think I'll post the question over on alternative lenses too.)


I was of the view for a manual focus lens, a LPL should be fine. The metering may be affected and how much so isn't usually known until you try it - if you rotate the filter and the exposure changes then it's affecting the metering, but you have the histogram to help out, so it shouldn't be an issue.

Unless the LPL is much cheaper and still of high quality - eg multicoated etc, I'd stick with a CPL which can be used on other AF lenses.



Sep 22, 2009 at 05:42 AM
Roy Pertchik
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p.2 #10 · p.2 #10 · Canon 17 TSE filter tests


Thanks Pixel


Sep 22, 2009 at 09:34 AM
 

Search in Used Dept. 



Yakim Peled
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p.2 #11 · p.2 #11 · Canon 17 TSE filter tests


Please pardon my ignorance but apart from a CPL, is there any filter which its effect can not be replicated in PP?

Happy shooting,
Yakim.




Sep 22, 2009 at 11:59 AM
Pixel Perfect
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p.2 #12 · p.2 #12 · Canon 17 TSE filter tests


Yakim Peled wrote:
Please pardon my ignorance but apart from a CPL, is there any filter which its effect can not be replicated in PP?

Happy shooting,
Yakim.



An ND depending on how long an exposure you want.



Sep 22, 2009 at 12:29 PM
Yakim Peled
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p.2 #13 · p.2 #13 · Canon 17 TSE filter tests


10X. So, CPL, ND, anything more?

Happy shooting,
Yakim.




Sep 23, 2009 at 05:56 AM
Roy Pertchik
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p.2 #14 · p.2 #14 · Canon 17 TSE filter tests


I Thin a CPL and a ND about cover it, if you don't mind layering multiple exposures.
I just ordered Formatt 5.65x5.65 filters for the 17T&S; a CPL and a 1.8 ND (aka 6 stops, aka 64x) Hope that that was a good choice because, well, $'s. As I recall from a few waterfall shoots, 1.8 is pretty good for misting water, and can work with a CPL stacked for 7 or so stops. I can work out the holder. I've already taken a Lee 82mm WA adapter and trimmed the inside to fit onto the lens flanges that engage the lens cap of the 17T&S. Now I can mount that ring on the lens, and then clip on the Lee holder. Now all I have to do is add width to the Lee holder and add standoffs to hold the filter(s) forward of the HAL9000 eye.



Sep 23, 2009 at 06:17 AM
stanj
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p.2 #15 · p.2 #15 · Canon 17 TSE filter tests


... and then you have to productize it and sell it to all the 17TSE people, such as me


Sep 23, 2009 at 06:36 AM
Roy Pertchik
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p.2 #16 · p.2 #16 · Canon 17 TSE filter tests


Hmmm... if the "downturn" continues much longer, possibly :-)


Sep 23, 2009 at 06:44 AM
Pixel Perfect
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p.2 #17 · p.2 #17 · Canon 17 TSE filter tests


Yakim Peled wrote:
10X. So, CPL, ND, anything more?

Happy shooting,
Yakim.



Occasionally a GND - yes I know you can do multiple exposures, but sometimes the GND is perfect and saves time in PP. I have a couple in the bag always.



Sep 23, 2009 at 09:19 AM
Yakim Peled
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p.2 #18 · p.2 #18 · Canon 17 TSE filter tests


Got it.

I'm asking this because the 17/4 is one of my dream lenses and it's quite expensive as it is so I just wondered how much more will I need to add for filters in case I buy it.

Happy shooting,
Yakim.




Sep 24, 2009 at 06:07 AM
Mike V
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p.2 #19 · p.2 #19 · Canon 17 TSE filter tests


What is the outside diameter of the 17mm?

I bet some of the clamp-on matte boxes made for cine use would work well.

Although they are expensive.






Apr 14, 2010 at 02:29 AM
lbaird
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p.2 #20 · p.2 #20 · Canon 17 TSE filter tests


I don't have the 17 but what I do have is $40,000.00 3D printer that prints ABS Plastic and I teach 3D computer design. I have the 24TS-E and the 14II and happy with those but would be willing to help out fellow FM people. I am located in Huntington Beach or Palm Springs, Ca.. If anyone is near and wants to work on a design and make a few parts for testing I would find it an interesting project. Send me a PM if I can help.

Larry



Apr 14, 2010 at 04:11 AM
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