POV-Ray : Newsgroups : povray.off-topic : Nikon D90 : Re: Nikon D90 Server Time
5 Sep 2024 21:23:36 EDT (-0400)
  Re: Nikon D90  
From: Eero Ahonen
Date: 30 Jun 2009 08:27:13
Message: <4a4a04a1$1@news.povray.org>
Darren New wrote:
> 
> I would have thought they wouldn't put in moving parts and extra filters
> if it wasn't actually needed. 

That certainly sounds true. OTOH eg. I have a cheap video camera module,
which shows infrared visibly on the screen it's connected to (not too
clear, though). And you know Sony's Nightshot -feature on videocameras?
If there are moving parts for it to work, they certainly are really
quiet - I've used the feature couple of times, never heard anything from
the camera.

> For one thing, you have to block the
> visible light from getting to the sensor, yes?

I dunno, the sensor can pick up the whole visible spectrum and I believe
the software can just pick eg. blue colors from there. Why would IR be
diffent? I'm sure blocking the visible light enhances the quality of
photos, I was thinking aligning the photo.

> That's my point. If you're not looking at an LCD, but instead you're
> looking out the lens, you won't be able to see the IR that you're
> photographing.

Yes. Somehow I guided to thinking that having the optical vf doesn't
prevent you having the LCD vf.

> With the Sony, you can either take the picture in IR (which is quick,
> espeically if you put on an IR flash), or you can line up the photo
> using IR and then take a flash photo. I don't think it takes that long
> an exposure, as I have a movie camera that will also film in IR that I
> can point out the window at night and catch wildlife.

Ah yes, I got stuck with aligning the image, not shooting IR. Yes, I'm
fairly certain that blocking the visible light enhances the quality of
IR-photo.


> It has a decent lens. 67mm or something. White balance, manual
> focus/aperature/exposure, flash shoe, etc etc. Basically most of the
> features of an SLR except for changing the lens and actually being an
> SLR. Very robust, too. I've been using it for years, and the first thing
> to wear out was the springs where you push the memory chips in and such.
> 
> http://www.dpreview.com/reviews/sonydscf707/
> 

Yes, half-SLR=SL. Seems that the biggest fault is unchangeable optics.

-Aero


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