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Date: 03 Dec 2006 05:36:10
From: W. Watson
Subject: Reparing the Bushnell Model 78-9570
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If you've had experience with this scope, maybe you can help here.
For a description see
<http://www.bhphotovideo.com/bnh/controller/home?A=details&kw=BUV570X60&is=REG&Q=&O=productlist&sku=156553 >
I almost dislike wasting time on this topic, but here's the story. A lady
approached me through our museum about this scope. She got it for free at a
garage sale, and wants to give it to her 10-11 year old son for Christmas.
It rattles. I said I'd take a look at it. After spending about 10 minutes
(less!) on it, I realized this is not a good scope for anyone. Amazingly,
it's sold for $140-150. However, I thought I'd see what the problem is.
There is a small piece of metal inside the tube. It can be seen when looking
through the objective end. I thought I'd disassemble it and take it. The
stopping point is two knobs. In the picture on the URL, the knob is on the
tube at the end of the long section. It's a few inches behind the B in
BUSHNELL. A knob is on either side. A axis goes through the tube and the
knobs on are on either end. They strongly resist being taken off. I could
probably pop one off, but it's likely to break something. Anyone know the
trick? Maybe they are glued on. If I can get them off, I'm pretty sure I can
then get into the upper part of the tube.
I do not plan to spend much time on this. If I can't get inside the tube,
then I'll tell the lady that she should consider some other astro device for
her son. This is a pretty sad scope for astronomy, and will more likely
deter her son from going further.
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
"I have made this letter [e-mail] a rather long one, only
because I didn't have the lesiure to make it shorter."
-- Blaise Pascal
Web Page: <home.earthlink.net/~mtnviews >
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Date: 02 Dec 2006 22:09:22
From: Starlord
Subject: Re: Reparing the Bushnell Model 78-9570
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Sorry to say but bushnell is on the bottem of the "Department Store" feeding
pile.
Telescope Buyers FAQ
http://home.inreach.com/starlord
--
There are those who believe that life here, began out there, far across the
universe, with tribes of humans, who may have been the forefathers of the
Egyptians, or the Toltechs, or the Mayans. Some believe that they may yet be
brothers of man, who even now fight to survive, somewhere beyond the
heavens.
The Lone Sidewalk Astronomer of Rosamond
Telescope Buyers FAQ
http://home.inreach.com/starlord
Sidewalk Astronomy
www.sidewalkastronomy.info
The Church of Eternity
http://home.inreach.com/starlord/church/Eternity.html
"W. Watson" <wolf_tracks@invalid.com > wrote in message
news:entch.6228$tM1.1274@newsread1.news.pas.earthlink.net...
> If you've had experience with this scope, maybe you can help here.
>
> For a description see
> <http://www.bhphotovideo.com/bnh/controller/home?A=details&kw=BUV570X60&is=REG&Q=&O=productlist&sku=156553>
>
> I almost dislike wasting time on this topic, but here's the story. A lady
> approached me through our museum about this scope. She got it for free at
> a garage sale, and wants to give it to her 10-11 year old son for
> Christmas. It rattles. I said I'd take a look at it. After spending about
> 10 minutes (less!) on it, I realized this is not a good scope for anyone.
> Amazingly, it's sold for $140-150. However, I thought I'd see what the
> problem is.
>
> There is a small piece of metal inside the tube. It can be seen when
> looking through the objective end. I thought I'd disassemble it and take
> it. The stopping point is two knobs. In the picture on the URL, the knob
> is on the tube at the end of the long section. It's a few inches behind
> the B in BUSHNELL. A knob is on either side. A axis goes through the tube
> and the knobs on are on either end. They strongly resist being taken off.
> I could probably pop one off, but it's likely to break something. Anyone
> know the trick? Maybe they are glued on. If I can get them off, I'm pretty
> sure I can then get into the upper part of the tube.
>
> I do not plan to spend much time on this. If I can't get inside the tube,
> then I'll tell the lady that she should consider some other astro device
> for her son. This is a pretty sad scope for astronomy, and will more
> likely deter her son from going further.
>
> Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
> (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
> Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
> --
> "I have made this letter [e-mail] a rather long one, only
> because I didn't have the lesiure to make it shorter."
> -- Blaise Pascal
> Web Page: <home.earthlink.net/~mtnviews>
>
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Date: 03 Dec 2006 13:22:08
From: W. Watson
Subject: Re: Reparing the Bushnell Model 78-9570
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Starlord wrote:
> Sorry to say but bushnell is on the bottem of the "Department Store" feeding
> pile.
>
> Telescope Buyers FAQ
> http://home.inreach.com/starlord
>
>
I believe it. Interesting that they bought out Tasco. Gag. What's worse for
me is that this summer I was thinking of buying a Bushnell birding scope.
Although it did seem quite good, I knew they had slipped a lot over the last
few decades.
My plan is to see if I can have the telescope to use as an example of what
not to buy.
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
"I have made this letter [e-mail] a rather long one, only
because I didn't have the lesiure to make it shorter."
-- Blaise Pascal
Web Page: <home.earthlink.net/~mtnviews >
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Date: 03 Dec 2006 01:43:37
From: William Hamblen
Subject: Re: Reparing the Bushnell Model 78-9570
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On 2006-12-03, W. Watson <wolf_tracks@invalid.com > wrote:
>
> There is a small piece of metal inside the tube. It can be seen when looking
> through the objective end. I thought I'd disassemble it and take it. The
> stopping point is two knobs. In the picture on the URL, the knob is on the
> tube at the end of the long section. It's a few inches behind the B in
> BUSHNELL. A knob is on either side. A axis goes through the tube and the
> knobs on are on either end. They strongly resist being taken off. I could
> probably pop one off, but it's likely to break something. Anyone know the
> trick? Maybe they are glued on. If I can get them off, I'm pretty sure I can
> then get into the upper part of the tube.
The objective should unscrew. They got the lens on there
somehow. The loose piece ought then to fall right out.
Besides whatever is rattling around inside, what can you see
through the eyepiece when you point the telescope at something?
The instruction manual, such as it is, is on-line at this url:
www.bushnell.com/customer_service/manuals/telescopes/78-9570_Voyager.pdf
Bushnell telescopes pretty much suck out loud.
Bud
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Date: 03 Dec 2006 13:23:43
From: W. Watson
Subject: Re: Reparing the Bushnell Model 78-9570
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William Hamblen wrote:
> On 2006-12-03, W. Watson <wolf_tracks@invalid.com> wrote:
>
>>There is a small piece of metal inside the tube. It can be seen when looking
>>through the objective end. I thought I'd disassemble it and take it. The
>>stopping point is two knobs. In the picture on the URL, the knob is on the
>>tube at the end of the long section. It's a few inches behind the B in
>>BUSHNELL. A knob is on either side. A axis goes through the tube and the
>>knobs on are on either end. They strongly resist being taken off. I could
>>probably pop one off, but it's likely to break something. Anyone know the
>>trick? Maybe they are glued on. If I can get them off, I'm pretty sure I can
>>then get into the upper part of the tube.
>
>
> The objective should unscrew. They got the lens on there
> somehow. The loose piece ought then to fall right out.
>
> Besides whatever is rattling around inside, what can you see
> through the eyepiece when you point the telescope at something?
>
> The instruction manual, such as it is, is on-line at this url:
>
> www.bushnell.com/customer_service/manuals/telescopes/78-9570_Voyager.pdf
>
> Bushnell telescopes pretty much suck out loud.
>
> Bud
Yes, definitely suck. See my comments to the other poster above this. I'm
pretty sure it's the same manual I have.
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
"I have made this letter [e-mail] a rather long one, only
because I didn't have the lesiure to make it shorter."
-- Blaise Pascal
Web Page: <home.earthlink.net/~mtnviews >
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