Filter Telescope

When you use a filter to observe the sun through a telescope what does it look like?

Is the sun still orange or what?
Or is it black and white
Also is it hazy or what

The cheap mylar whole-aperture filter are more-or-less white light. They'll show you sunspots but comapratively little else. …

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Marine Binoculars

How do you calculate distance with the use of binoculars?

are there any mathematical equations to determine the distance of something? I was curious about it, because I thought Marine Recon did this by themselves, just in their heads, with a piece of paper.
How can I calculate (mathematically), the distance between me …

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Camera Lens

Camera Lens

Why must a camera lens be moved farther from the film to focus on a closer object?

Why must a camera lens be moved farther from the film to focus on a closer object?

look up telephoto lenses, and fish eye lenses itll exsplain it.

How camera lenses are made

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Lens Binoculars Case

Why are stereo microscope images not inverted, as is the case with compound microscopes?

Is it because stereo microscopes have a secondary lens to correct the inverted image, like binoculars?
Thanks Asst Prof, but what is the actual mechanism for why it isn't inverted? If compound microscopes use lenses, and stereo microscopes …

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Bushnell Imageview

Bushnell Imageview

What are VGA cameras?

I'm looking into buying one of those binocular camera and on some of them they'll tell me their 2.1 mp or whatever and on others they'll tell me they have VGA cameras. Here's the one i was looking at.
Thanks for the help!
http://www.opticsplanet.net/bushnell-imageview-binocular-111026.html

Video Graphics Array

They have …

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Camera Binocular

question on digital camera binoculars..i need opinions...?

i wanted a pair of digital camera binoculars for christmas, and i ended up gettin two pairs. One is a Simmons Captureview 8x42, and the other one is a Meade Captureview 8x30. I will probably be using it for sporting events and taking pictures while i …

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Water Proof

Water Proof

How to waterproof RC ESC, Vid 2; ProLine Racing Presents!

How do you water proof a basement with a lot of moisture, no water leaking in?

I just have a lot of moisture. Enough to cause mold. Don't have water leaking in. I have gotten an estimate for waterproofing. Costly. Will any product …

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Vivitar Digital

What is the maximum size SD card a Vivitar 4345 digital camera will accept?

All the technical stuff on the net says 512MB. I put a 1GB Sandisk one in and it was fine. I'm asking because I bought a Patriot 4GB High Capacity Class 6 SD card it it won't read it, …

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Lenses Quality

Lenses Quality

~*~Barbie Eye Super Nudy Pink Circle Lens Review~*~

Where can i buy cheap, but good quality colored contact lenses.?

Does anyone know any websites or shops where i can buy colored contacts?

There's always freshlook you find it at walmart, they're pretty cheap.
Solotica lenses are really good and look natural but you …

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Spotting Zoom Binoculars

spotting scopes?

Looking for a spotting scope ( even binoculars ) f/ target shooting.
Would be using for indoor 50' .22 cal rifle & pistol as well as outdoor for longer ranges .. 25yd to 100 yd larger calibers.
Mainly interested in what power to look for .
Physical size, zoom, brand …

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