Question about Bushnell / Bausch & Lomb 15-60x60mm Discoverer Spotting Scope 78-1700 w/ FREE UPS

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Loss of clarity in spotting scope

I can't seem to get clear focus at any power setting, can I send it in for warrenty work or is 8 Years too old?

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Depends on maker of scope, some models only come with i year, that should be the first warning, if you want to try something before going back where it was purchased ....take a q-tip put just a dab of alcohol on it, touch eyepiece lense with it, now turn around to dry side of q-tip and clean lense very lightly. this may do it where its 8 years old. you never mentioned the kind of scope.hope this helps...larry@reichinstruments.com

Posted on Jan 01, 2009

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2.5x8 variable leupold loses focus when change power


The only reason a variable power Leupold scope should lose focus when changing power is that the object you are viewing is too close to view on a high magnification. Try again while viewing something 50 yards/meters away, and if it still loses focus, then it probably needs repair.

Leupold scopes aren't user-servicable, and you wouldn't want to try to take it apart yourself, but that's okay, because Leupold has one of the best reputations among optics manufacturers for standing behind their products. If there's a problem, you can call their customer service department at 1-800-538-7653, or submit a request on their online form here:
http://www.leupold.com/corporate/contact-us/service-support/

Either way, don't give up on it. Leupolds hold their value, and you could probably even sell a problem scope to someone who is willing to send it in for repair.

Good luck!

Dec 19, 2010 | Optics

1 Answer

Loss of focus when izoom in


This typically means that you are have exceeded the scopes ability to focus at the distance that you are shooting. This scope is optimized for 50 yards and will function well at all magnification settings. Closer than this optimal distance the higher magnifications may present problems with blurring. Many scopes have a "parallax" adjustment that changes the optical focus to correct this problem. Several of my 22 mag scopes have this adjustment on the objective bell. You simply set the indicator line on the appropriate yardage indicator (making minor adjustments to fine tune focus). Hope this helps

Sep 16, 2010 | Simmons 22 Mag 39X32 with Rings

2 Answers

I need a new manual for my vivitar ifst 70076


You will not find a manual for these small telescopes.

This is a small refractor telescope-- they pretty much all work the same-- BUT don't expect to get more than 100 power out of the scope. Yes I know the box said 600 power but it's a lie. In my 8 inch telescope I rarely get above 250 power and my scope is many times larger than the one you have--

Now put the eyepiece with the largest number written on it into the telescope-- the LARGER the number the LOWER the magnification. During the day time practice focusing on a distant object --- AND line-up the small finder scope on top with the main telescope tube. Look at the top of a distant light or church steeple, or telephone2_bing.gif pole. Without moving the telescope adjust the small finder scope by loosening and tightening the screws around the tube holding the finder scope-- put the crosshairs on the same spot as the main telescope.

Now you can use the small finder to locate objects in the sky-- the moon should be your first night time target.

Read this:
http://www.texasastro.org/telescope.php

and my TIPS on my profile page.

Apr 17, 2010 | Vivitar (1607225) Telescope

1 Answer

I have a weaver k-8 scope with adj. rings on front bezel ??????


the front ring is for adjusting point of impact at a given range,,,its called a "parallax ajustment" it corrects for the scopes inaccuracies over its full range say from 10 yds to 100 yds there a bit of a pain on a hunting rifle as you need to focus them every time and that slows down your shooting, when only a snap shot will get the kill you cant wate to mess about focusing the darm scope so i never use them on my rifles,,unless im target shooing,, or im snipping when i have time to take my shot,,,
(a head shot only!) only a parallax scope is spot on aim from 10yds to infinity

Nov 18, 2009 | Weaver Optics

1 Answer

Unable to focus with magnification greater than 40x


You must collimate the scope. Watch this video.
http://www.andysshotglass.com/Collimating.html

Also the maximum magnification of any telescope is NEVER more than 50 times aperture, so your scope is 400 power. BUT everything including the sky must be perfect. Usually 30-40 times aperture is the most you will ever get.

Oct 20, 2009 | Orion Optics

1 Answer

8x32 swat scope


It's not a high end scope. Most times you're better off buying a lower power scope of better quality and you'll still be able to see more clearly than with a higher power yet lower quality scope.

Consider that 6x, and lower power, scopes were pretty much standard for WWII snipers, and that fixed 10x is still an accepted power level for snipers these days.

Nov 04, 2008 | Barska Optics Barska 10-40x50 Ir Swat...

2 Answers

Picture changes focus/sharpness instantly and then recorrects


Hi

You can try and get more infornation for me.

Go into the the menu by pressing the WEGA GATE button on the remote. In the sub menu of picture adjustment switch the DRC-MF setting to off. It should read normal.

See if this stoppes your focus problem.

If it changes let me know for further directions.

Feb 24, 2008 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Tasco propoint PDP2 scope


Are you looking set the eye relief or the focus ring?

For eye relief you need to loosen the scope in the rings, mount the rifle to your shoulder with your standard hold and cheek weld. At this point, slide the scope back and forth in the rings until you obtain a full field of view. Tighten one of the rings slightly, dismount and remount the rifle several times to ensure correct adjustment. Level scope and tighten rings a final time.

For focus adjustment (remember that you are using the eyepiece to focus on the cross hair, not your target!) loosen the lock ring and turn the eyepiece until the cross hair is focused. It is best if you check it several times by closing and opening your eye several times. The crosshair should be instantly in focus. If your eye must adjust, then you need to refocus until the focus is instant.

The two dials on the scope are for adjusting the bullet point of impact. They will typically move POI 1/4 inch at 100 yards.

Nov 08, 2007 | Optics

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