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Help with Tasco 675 telescope needed!

Need our opinion on a telescope Optics Planet has on sale, go ahead and ask! Post some hints and tips on various telescope brands and configuration.

Help with Tasco 675 telescope needed!

Postby Margaret Sheppard on Sun May 16, 2004 3:27 pm

I bought my husband a Tasco 420x76 Luminova Telescope 40076420 for his birthday. He has set it up, and can align the small viewer onto an object so the cross hairs are over the object. However, when he then looks through the black viewer he can't see anything - it is blank. Are we overlooking the obvious or is there something else he needs to do. He is getting very frustrated.

I look forward to your reply.

Margaret Sheppard (UK)
Margaret Sheppard

Finder Scope Alignment

Postby Stan @ Opticsplanet on Mon May 17, 2004 4:28 pm

The little finder scope is a lot like a riflescope, you need to adjust it to make sure it sees the same image as the scope. The best way to do that, is to find a bright star, like Polaris (north star), because it doesn't move. Use the scope on its lowest setting, by using the largest mm (lowest power) eyepiece. Once you have that star in the center of your field of view, than you can adjust your finder to calibrate it to your scope. Once that is set, you will not have a problem. Good luck.
Best Regards,
Stan Mack
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Stan @ Opticsplanet
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Postby iceman on Sun May 23, 2004 9:30 pm

Is the lens cap on the end of the telescope? :)

Also, try using it during the day so you can see where it's actually pointing. That's the easiest way to align yuor finderscope.
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Joined: Sun Mar 07, 2004 3:58 pm

Postby sickfish on Wed Nov 10, 2004 5:22 pm

I own the same telescope, so I can understand your husband's frustration.

My tips for any kind of viewing pleasure with this cheap and cheerful (well - cheap anyway) telescope is to stick to lower magnifications.

The telescope we both share is sold with the rather misleading claim that it can show objects at 600+ times magnification. This is plain bobbins. The tripod that comes with the telescope is so wobbly that you won't see a thing beyond 100 - 120x magnification.


Don't use the 4mm lens - you will have little or no joy with it. This is the highest magnification lens, and the hole is so small that you will have difficulty seeing through it anyway.

Use the HIGHER numbered lenses (such as 12.5mm). These provide a SMALLER magnification, but the image is much clearer, and more to the point - it's not wobbling as much. The more wobble, the less distinct the image - which is why the 4mm lens is pointless.

Using a smaller magnigication makes it easier to find things anyway.

Good luck!