Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

RV6 vs Meade 6

  • Please log in to reply
15 replies to this topic

#1 vjstangelo

vjstangelo

    Vostok 1

  • *****
  • topic starter
  • Posts: 109
  • Joined: 31 Aug 2010

Posted 17 February 2021 - 02:40 PM

If this were 1980 all over again and you were young, imagine you were buying your 1st scope and narrowed down to an RV6 vs a Meade 591/628 6”f8.

Which would you choose and why? (hint: weighing them both I chose the 591 in 1980 I think because Meade’s ad was a full page in Astronomy Mag and they offered a drive corrector as an accessory).
  • bjkaras likes this

#2 Terra Nova

Terra Nova

    ISS

  • *****
  • Posts: 23,961
  • Joined: 29 May 2012
  • Loc: Cincinnati Metro Area

Posted 17 February 2021 - 02:49 PM

That wouldn’t be a hard decision for me. I wouldn’t be buying either one. If it was 1980 all over again I’d be buying an Edmund 4” F15 refractor; preferably one of the red and beige models with the Rank objective lens. :refractor:


  • L. Regira, mattyfatz, Marc-Andre and 3 others like this

#3 KBHornblower

KBHornblower

    Viking 1

  • -----
  • Posts: 629
  • Joined: 01 Jul 2020
  • Loc: Falls Church, VA (Washington DC suburb)

Posted 17 February 2021 - 03:08 PM

If this were 1980 all over again and you were young, imagine you were buying your 1st scope and narrowed down to an RV6 vs a Meade 591/628 6”f8.

Which would you choose and why? (hint: weighing them both I chose the 591 in 1980 I think because Meade’s ad was a full page in Astronomy Mag and they offered a drive corrector as an accessory).

I might have flipped a coin.  One thing that always puzzled me was what difference, if anything of optical or mechanical significance, was there between the 591 and the 628 to justify a difference of $100 in the price.  They looked alike in the advertising photos.



#4 apfever

apfever

    Fly Me to the Moon

  • *****
  • Posts: 6,001
  • Joined: 13 May 2008
  • Loc: Colorado

Posted 17 February 2021 - 04:26 PM

The mount on the left (black) is the one used for the 628 and 826. The mount on the right (silver) is the one used on the 6" model 591 and 8" model 791.

 

There is a difference. I think the silver mount was sold more through Meade's offshoot Crown Optics brand, while the black was primarily Meade brand. 

I've had both in the 8" version, a few of them. I would say the black one used on the 628 is the better mount. At least it gives the bigger impression. 

 

Ironically, some just hate the 826 mount to no end or ending of ends. I've rebuilt some, did a micrometer build of one (blue print concept), and never had an issue with the 628 mount. There are always little reversed engineering things that can add up. I think most of the problem with the 628/826 is the disastrously bad RA control knob that many INCLUDING Meade eventually just cut off. The earlier versions were a simple 120V plug in. The later versions with battery options and other tech creep just didn't have as much classic vintage robust simplicity.

 

I only have one 826 mount with no OTA, so no additional comparisons now.

Attached Thumbnails

  • meade 791.jpg

  • Bomber Bob likes this

#5 vjstangelo

vjstangelo

    Vostok 1

  • *****
  • topic starter
  • Posts: 109
  • Joined: 31 Aug 2010

Posted 17 February 2021 - 07:02 PM

I see your Dec shaft on the 591 rusts up just like mine. The 826 looks like Stainless, or is it just polished up?

Thanks for the comparison.

#6 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 21,665
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 17 February 2021 - 07:14 PM

Hard to pick for OTA's. I did not like the mounts on each brand.  With a better mount i would jump on both.


  • Bonco2 and bjkaras like this

#7 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 23,147
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 17 February 2021 - 07:44 PM

was the 826 mount the same one they used for the 10" newt?



#8 Bomber Bob

Bomber Bob

    Hubble

  • *****
  • Posts: 18,727
  • Joined: 09 Jul 2013
  • Loc: The Swamp, USA

Posted 17 February 2021 - 08:14 PM

Assuming comparable optics, I'd buy the Meade -- clock drive has to be less finicky than the Criterion...



#9 mattyfatz

mattyfatz

    Gemini

  • *****
  • Posts: 3,338
  • Joined: 27 Dec 2006
  • Loc: Boise Idaho

Posted 17 February 2021 - 11:22 PM

I see plenty of old Criterion’s around. I can’t say I’ve ever seen a Meade 628 in person. I wonder how many were sold vs the RV-6? Wasn’t there also a rebranded Meade scope for a while? I seem to remember an add for pier mounted 6” & 8” newts... (¿Pacific Telescope?)



#10 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 21,665
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 18 February 2021 - 06:43 AM

I see plenty of old Criterion’s around. I can’t say I’ve ever seen a Meade 628 in person. I wonder how many were sold vs the RV-6? Wasn’t there also a rebranded Meade scope for a while? I seem to remember an add for pier mounted 6” & 8” newts... (¿Pacific Telescope?)

Crown optics spin off.


  • mattyfatz likes this

#11 bjkaras

bjkaras

    Mariner 2

  • -----
  • Posts: 249
  • Joined: 24 May 2019
  • Loc: Back and forth between Santa Clara, CA and Las Vegas, NV

Posted 18 February 2021 - 04:17 PM

If this were 1980 all over again and you were young, imagine you were buying your 1st scope and narrowed down to an RV6 vs a Meade 591/628 6”f8.

Which would you choose and why? (hint: weighing them both I chose the 591 in 1980 I think because Meade’s ad was a full page in Astronomy Mag and they offered a drive corrector as an accessory).

If it was a couple years earlier I would have bought a Cave 6”, which is what I did at the time. I got mine in 1972, when I was 16.


  • steve t likes this

#12 bjkaras

bjkaras

    Mariner 2

  • -----
  • Posts: 249
  • Joined: 24 May 2019
  • Loc: Back and forth between Santa Clara, CA and Las Vegas, NV

Posted 18 February 2021 - 04:23 PM

The mount on the left (black) is the one used for the 628 and 826. The mount on the right (silver) is the one used on the 6" model 591 and 8" model 791.

 

There is a difference. I think the silver mount was sold more through Meade's offshoot Crown Optics brand, while the black was primarily Meade brand. 

I've had both in the 8" version, a few of them. I would say the black one used on the 628 is the better mount. At least it gives the bigger impression. 

 

Ironically, some just hate the 826 mount to no end or ending of ends. I've rebuilt some, did a micrometer build of one (blue print concept), and never had an issue with the 628 mount. There are always little reversed engineering things that can add up. I think most of the problem with the 628/826 is the disastrously bad RA control knob that many INCLUDING Meade eventually just cut off. The earlier versions were a simple 120V plug in. The later versions with battery options and other tech creep just didn't have as much classic vintage robust simplicity.

 

I only have one 826 mount with no OTA, so no additional comparisons now.

I have an 826 mount now. It’s on a 55” pier and I use it for my 6” f12 refractor. It’s driven on both axes and has an Accutrac controller. It’s not bad for visual, but not so much for imaging. I’m looking to replace it in the near future, with a Mach1 or an AP900, or something similar.


  • steve t and Bomber Bob like this

#13 Bomber Bob

Bomber Bob

    Hubble

  • *****
  • Posts: 18,727
  • Joined: 09 Jul 2013
  • Loc: The Swamp, USA

Posted 18 February 2021 - 04:33 PM

Just to be clear...

 

The 628 / 826 version came first.  It has better mirrors, but the problematic mount and/or clutch knob, and no wire-free power option (battery pack)?

 

The StarFinder version came next.  Big Disk polar axis, self-contained battery pack & drive system, but the mirrors weren't as good??


  • steve t likes this

#14 The Planetman

The Planetman

    Viking 1

  • *****
  • Posts: 881
  • Joined: 27 Jan 2006
  • Loc: Western KY

Posted 18 February 2021 - 04:59 PM

The first Starfinder mounts had AC drives.  Then they switched over to the DC drives. 
The mirrors in the Starfinders, for the most part, were pretty decent. 


  • steve t likes this

#15 vjstangelo

vjstangelo

    Vostok 1

  • *****
  • topic starter
  • Posts: 109
  • Joined: 31 Aug 2010

Posted 18 February 2021 - 07:13 PM

Here is a close up of my 591. Note I added to the order in 1980 the optional eyepiece holder which clamps to the mount post.

 

 

 

model 591.jpg


  • steve t likes this

#16 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 21,665
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 18 February 2021 - 07:15 PM

Just to be clear...

 

The 628 / 826 version came first.  It has better mirrors, but the problematic mount and/or clutch knob, and no wire-free power option (battery pack)?

 

The StarFinder version came next.  Big Disk polar axis, self-contained battery pack & drive system, but the mirrors weren't as good??

I had a 8" F/6 Starfinder version and it was good. Not as good as your 826 that was mine. The mount was 5 times better than the 826 mount i had.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics