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What if you were to cover the IR emitters up on the 717?

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Steven C.

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If you were cover up the IR emitters on front of the 717, would you be able to theoretically shoot in daylight without a dedicated IR filter, at least to some extent?

The reason i ask is that i would like to be able to get a feel for IR work, without spending what for me at this time is more than i would like on a dedicated filter that i may not even enjoy using that much.

I will give it a shot, and let you know what happens, although i wont fool myself, i am sure that someone out there has tried this already. what were your results?

Steven.

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My gallery, for your perusal.

http://calgary-steven.deviantart.com/thumbnails/?PHPSESSID=0e1df2609361a0bf3ad66db20e71ffe6
 
Been done many times by many 7x7'ers. I'm not one of them (S85). Covering the emitters has always been an option. The downside is that exposues become quite long. The upside is that you don't need the ND filter at all - just the R72. Exposures then are about 1-2 seconds at f/2.x to f/3.x. That's an eternity if the wind is blowing, or there's some action in the frame that you want to freeze. Use auto focus and full manual exposure. You'll get a reddish image that you'll need to play with in your photo editor program of choice. Best to bracket the shots with 3 different exposures to get a 'best' one that edits up well.
  • David
Steven C. said:
Steven C. wrote:
If you were cover up the IR emitters on front of the 717, would you
be able to theoretically shoot in daylight without a dedicated IR
filter, at least to some extent?

The reason i ask is that i would like to be able to get a feel for
IR work, without spending what for me at this time is more than i
would like on a dedicated filter that i may not even enjoy using
that much.

I will give it a shot, and let you know what happens, although i
wont fool myself, i am sure that someone out there has tried this
already. what were your results?

Steven.

--
My gallery, for your perusal.

http://calgary-steven.deviantart.com/thumbnails/?PHPSESSID=0e1df2609361a0bf3ad66db20e71ffe6
Click to expand...
--
  • David - Sony S85, MHG07a (wide angle adaptor), VR 360's, traditional pano's, IR's, Hoya R72, PSP-7, PanoTools...
 
Adding to Davids response, if you don't cover the IR emitters while using nightshot to do IR you will get a set of really nasty IR reflections in you images. I cover mine with a piece of plastic I cut to fit around the lens. When not using nightshot it dose not matter if they are covered or not. Hope this helps out. Cheers.

f717 & p72
http://www.pbase.com/catson (Pbase Supporter)
 
Steven W. Bennett said:
David_S85 said:
Use auto focus and full manual exposure.
Click to expand...
Just one problem - Nightshot is "invalid" in manual, aperture and
shutter priority modes. It only works in one of the auto modes.
I don't know if there is a way around this.
Click to expand...
Shoot, thats right.
That bothers me. Although i know why, it is frustrating nonetheless.

So... that means that to do "proper" IR with the camera, you need an IR filter so you can use the camera in full manual mode i suppose.

--
My gallery, for your perusal.

http://calgary-steven.deviantart.com/thumbnails/?PHPSESSID=0e1df2609361a0bf3ad66db20e71ffe6
 
Steven W. Bennett said:
Just one problem - Nightshot is "invalid" in manual, aperture and
shutter priority modes. It only works in one of the auto modes.
I don't know if there is a way around this.
Click to expand...
I did not know this about the 7 series. I should not have guessed. Sorry. Manual IR's are possible nevertheless.

As a S85 owner, I would greatly desire the nightshot function on my cam for the quick shutter speeds for IR's. I'd probably take 10 times as many shots. In the 'windy city' (Chicago), 1 second shots are almost impossible because of subject movement. Calm enought IR days are few and far between.
  • David
 
Steven C. said:
So... that means that to do "proper" IR with the camera, you need
an IR filter so you can use the camera in full manual mode i
suppose.
Click to expand...
I haven't fooled around with IR yet, but that's my understanding.
Apparently, Sony hobbled the IR capability of these cameras
because they had a reputation for being able to see through
clothes. If you get IR and ND filters, the full range of "options"
should be restored. :o)
 
Steven C. was fired as Bushwood Country Club Assistant Groundskeeper for writing in part:
Steven C. said:
If you were cover up the IR emitters on front of the 717, would you
be able to theoretically shoot in daylight without a dedicated IR
filter, at least to some extent?
Click to expand...
Well, with a leap of faith you could try a deep red and a deep green filter. That's what I used before breaking down and getting the Hoya R72 (89B). The shocking, lurid results are here, in the first few images on this page:

http://www.unclaimedmysteries.net/infrared00.htm

Corry
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It Came From C. L. Smith's Unclaimed Mysteries.
http://www.unclaimedmysteries.net
Celebrating 6 years as part of the problem with the Internet.
 
Corry Lee Smith said:
Corry Lee Smith said:
If you were cover up the IR emitters on front of the 717, would you
be able to theoretically shoot in daylight without a dedicated IR
filter, at least to some extent?
Click to expand...
Well, with a leap of faith you could try a deep red and a deep
green filter. That's what I used before breaking down and getting
the Hoya R72 (89B). The shocking, lurid results are here, in the
first few images on this page:

http://www.unclaimedmysteries.net/infrared00.htm

Corry
--
It Came From C. L. Smith's Unclaimed Mysteries.
http://www.unclaimedmysteries.net
Celebrating 6 years as part of the problem with the Internet.
Click to expand...
Funky stuff. thanks for sharing that, and thanks to everyone who replied.

--
My gallery, for your perusal.

http://calgary-steven.deviantart.com/thumbnails/?PHPSESSID=0e1df2609361a0bf3ad66db20e71ffe6
 
You can get some control back by using a x16 ND and a 72 IR (this is what I've read(!)) You have to block the emitters to stop reflections on the filters.

I've just got my 717 and I'm waiting on a n IR72 - but there are users on this Forum that have done it.

Early 707's and some 717's will allow the Nighshot switch to be pushed enough to get the internal filter out of the way but not so far as the manual lock sets in.

--
Paul Worden
 
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