Re: My first experience with Nikon Coolpix 950 and Sony TRV-510camcorder...

[Clive Warren <Clive.Warren@xxxxxxxxxxxxxx>]

At 9:13 pm -0500 10/2/01, Timothy Stark wrote:

big snip
>
>Also I have Sony camcorder.  Its model is TRV-510.   When I turned nightshot
>on at daylight,
>screen is complete white or extremely overexposed.  When I put Hoya R72
>infrared filter on
>my Sony camcorder, it is slightly less overexposed or partially white with
>nightshot on and clearly infrared picture with nightshot off.  With
>nightshot off, a infrared picture is far more reddish with slightly
>bluish-looking confiers than my Nikon pictures.  It is comparable with my
>Nikon Coolpix 950 digicam!  When I put Kodak Wratten #87 and #87C on my Sony
>camcorder,  it is more less overexposed and half solid white with nightshot
>on and clearly infrared picture with nightshot off.  Inside my home, it
>looks like dim room with nightshot off but clearly infrared picture with
>nightshot on.  When I took a picture on my Sony camcorder with nightshot off
>and Hoya R72 filter, I have a problem with my picture.  They looks like
>television scan lines on some bright area.  Clearly my Sony TRV-510
>camcorder has ability to record infrared video regardless on nightshot
>switch off or on.
>
>Does anyone have similar experience with Sony TRV-510 camcorder for infrared
>video/photography?
>
>Thank you!
>
>-- Tim Stark

Tim,

Recently a friend asked me to specify a digital camcorder to match 
her requirements - the Sony TRV-620.  Well I also got to play with 
the thing as a thank you so tried out a few CoCam infrared filters.

The nightshot mode is truly superb on the 620 - using an R72 and an 
88A it soon became clear that the camera is designed to operate using 
infrared light.  The action of switching to "nightshot" probably 
removes the infrared blocking filter from the front of the CCD.  The 
resulting images (as viewed on the fold out 3.5" screen) had a green 
tinge with some objects clearly showing different IR reflectivity 
despite appearing to be manufactured from similar fabric.  There is 
an infrared light source onboard the camera which is fun for shooting 
in complete darkness.

I did try the filters briefly using the camera in its ordinary mode 
but the image was a lot darker requiring some manual alteration of 
settings to optimise the image.  The fun of using the camera in 
nightshot mode is too much to resist so will have to borrow the 
camera again soon....

-- 
All the best,

              Clive   http://www.cocam.co.uk
                      Photographic Services, Filters and Equipment, Infrared FAQ
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