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Neat little 40mm Unitron

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#1 Steve_M_M

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Posted 20 June 2007 - 12:23 AM

40mm Unitron

#2 Steve_M_M

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Posted 20 June 2007 - 12:25 AM

Note the time on these two posts, because now it is sold, 39 seconds after I posted this and only about 7 minutes after the ad was placed. (not to me, I decided I had enough scopes coming in this week)

#3 trainsktg

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Posted 20 June 2007 - 07:52 AM

That was quick. I guess a person needs to be on their toes. Since it sold so quickly, I wonder how much it would have gone for had there been no Buy It Now option.

Keith

#4 PJ Anway

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Posted 20 June 2007 - 08:23 AM

If you click on the winning bid, it says the Buy-It-Now price was $225.00.

#5 trainsktg

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Posted 20 June 2007 - 08:46 AM

Right...what I'm getting at, though, is considering how fast it sold with Buy It Now, there must be a desirability to this scope that may have resulted in a much higher sale price if it went through the normal 7-day bid cycle.

Whatever the final outcome, someone got a pretty good deal at $225.

Keith

#6 Glassthrower

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Posted 20 June 2007 - 09:07 AM

I bet it would make a fine guidescope.

But realistically, 40mm is a bit small for any "serious" observing - outside of lunar perhaps. There's just not much to see with 40mm of aperture, even with a Unitron.

Regards and clear skies,

MikeG

PS - I will now prepare to be pelted with fruits and vegetables by the owners of very small scopes! ;)

#7 clintwhitman

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Posted 20 June 2007 - 09:42 AM

Mike you need to look thru that nikon 5CM it would freak you out. The details that I can see on jupiter are better, but a littel dimmer than the 80mm towas I have. I is like a littel tiny takahashi...

#8 mikey cee

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Posted 20 June 2007 - 10:04 AM

Well I'll take that comment with a boulder of salt! :smirk:Mike

#9 Preston Smith

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Posted 20 June 2007 - 10:13 AM

I bet it would make a fine guidescope.

But realistically, 40mm is a bit small for any "serious" observing - outside of lunar perhaps. There's just not much to see with 40mm of aperture, even with a Unitron.

Regards and clear skies,

MikeG

PS - I will now prepare to be pelted with fruits and vegetables by the owners of very small scopes! ;)



Mike,

I am definitely a proponent of small scopes. I am amazed at what one can see with a 50mm scope. But I totally agree that a 40mm scope is too small for general observing. Physics takes over when you go below 50mm. And there are definite limitations even at 50mm.

#10 Lew Chilton

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Posted 20 June 2007 - 03:38 PM

Do you think 40mm is small? How about a 32mm? My first scope was a Criterion 32mm refractor that I saw advertised in Boys Life Magazine - that was 1957. I bought it for around $19.00. Attached is a picture of it.

Attached Thumbnails

  • 1673599-TELESCOPE - Broomstick in backyard, Lakewood.jpg


#11 mikey cee

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Posted 20 June 2007 - 04:40 PM

Lew... I own it's cousin the five draw version in pristine condition. It cost $3.95 back then. Mom ordered it from Popular Mechanics. ;) ;)Mike

#12 Vesper818

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Posted 20 June 2007 - 06:20 PM

Same with that little 50mm Micronta, unbelievebly crispy and contrasted views!

#13 Bonco

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Posted 20 June 2007 - 08:49 PM

Lew.
That picture is one of my favorites, is that you? I've seen it posted elsewhere and love it. Represents the 50's so well with the tennis shoes, hair style etc. Also love the telephone/power pole with numerous wires. I bet the scope is pointed at an insulator down line. I used to use them as test objects for my first evaluations of my refractors in the 50's. Bonco

#14 trainsktg

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Posted 20 June 2007 - 09:02 PM

Well, if a 7x35 can be useful, why not a 40mm scope? A little narrower FOV, sure, but still useful.

But...that said I'd have to agree with Mike G. It will work on the Moon, and might be fun to split doubles with, but for any kind of planetary work (ie study) this scope will fall short.

But, but...that said, I'd still pay in the $200 to @250 range for one.

Keith (Of course, I paid $800 for a 60mm Goto, so how smart can I really be :lol: ?)

#15 Steve_M_M

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Posted 20 June 2007 - 09:26 PM

No, No, NO, you did not pay $800....just a chunk of gold and a few chunks of silver.

#16 trainsktg

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Posted 20 June 2007 - 09:35 PM

Well, OK...details, details.

Keith ( Scrounge up a 3" version and I'll send you two more chunks of gold :ubetcha: )

#17 Lew Chilton

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Posted 21 June 2007 - 12:15 AM

Mike and Bonco,

Yup, that's me in my backyard in Lakewood, California. From the back porch, you could look north over the back fence and get a clear view of Mt. Wilson Observatory - the tower telescopes and the 100-inch or 60-inch dome. Occasionally, on very clear nights, you could see the Milky Way.

I replaced it with a used Edmund 4-1/4 inch Palomar Jr. from Cave Optical in 1958. Later in 1958 and into 1959, my dad helped me build an 8-inch. The mirror was finished by Cave Optical in 1959. I sold this scope in 1963 when I entered the Air Force. In 2004, the person I sold it to saw one of my posts on AM, contacted me and asked if I wanted it back. He drove from Prescott, AZ to Los Angeles to deliver it to me. I am now restoring it. Here's how it looked shortly after completion. Same back yard as the photo of the 32mm refractor.

Attached Thumbnails

  • 1674529-TELESCOPE - 8-INCH on patio in Lakewood copy.jpg


#18 trainsktg

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Posted 21 June 2007 - 07:51 AM

Well, I totally forgot I have one of these little 40mm scopes...kinda...its a Tasco 4VTE, one of those variable power scopes. The images on the Moon are soft, but bright. I'm going to try and take the barlow thingy out and replace it with regular EPs to see if that improves he images. Unfortunately, the focuser won't take 0.965"ers, I'll try some microscope EPs. Anyone ever do this mod before?

Keith

#19 mare_balticum

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Posted 21 June 2007 - 08:53 AM

Hi Keith!

> take the barlow thingy out and replace it with regular EPs

That will not work. This lens-set is not a barlow-element, but a two-element-lens for erecting the image ("Kepler-designed earth-viewing-telescope"). The original focal-length of the objective is maybe 400 mm or so. You will not get any sharp focus by taking this lens-set out without shortening the tube. I had the same problem with one of my former earth-viewing-scopes: It was a Vixen 15-60x60 - the objective had a FL of 420 mm, the tube was up to 60 or 70 cm long.

#20 mikey cee

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Posted 21 June 2007 - 09:40 AM

Lew....You weren't wearing Red Ball Jets were you? They were my favorites!! :question: :grin: :question: :grin:Mike

#21 Lew Chilton

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Posted 21 June 2007 - 12:46 PM

Mike, I don't remember. Maybe they were U.S. Keds.

#22 mikey cee

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Posted 21 June 2007 - 03:44 PM

PF Flyers???...enough of this nonsense...later! :lol: :lol:Mike

#23 trainsktg

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Posted 21 June 2007 - 06:26 PM

Michael,

Thanks for the info on not being able to modify the 4VTE. I guess I'll just stash it back in the parts pile. I only paid a few bucks for it at the Goodwill.

Keith

#24 Preston Smith

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Posted 21 June 2007 - 06:31 PM

Michael,

Thanks for the info on not being able to modify the 4VTE. I guess I'll just stash it back in the parts pile. I only paid a few bucks for it at the Goodwill.

Keith


Keith,

I also have one and Micha is right. However, when I get back from Texas in Sept I'm planning on converting it for use as a guide scope. I have been scratching out some ideas so I'll post pictures when I get it done around October.

#25 Vesper818

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Posted 21 June 2007 - 06:32 PM


Mom wouldn't let her girls wear PF flyers.... I have to settle for flat keds tenny runners, and of course we took off our socks as soon as we were out the door....


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