30 replies to this topic

[stevereecy]

I had a heck of a time finding weights of potential cat or cass for a piggyback system I’m working on.   Forgive me if this is buried somewhere in the archives, but how much does your OTA weigh? And what is your 0TA? And is that with or without eyepieces or the finder?  This thread may help somebody.

Edited by stevereecy, 02 October 2019 - 11:23 AM.

[petert913]

I think most of the distributors give the OTA weights in the "specifications" listing of each telescope.

I check those frequently for various types of scopes and their weights.

[TOMDEY]

Well, on the heavy end of the rainbow... I once had a (wonderfully-performing) GEMounted telescope with very heavy OTA. Everything above the pier totaled 650#, but the main OTA, stripped down to its essence, was only around 100#. On my current biggest scope... the entire scope (above the elevator platform that it's on) comes in at ~450#, with the OTA alone weighing something like 350#. On the positive side... it's a 36-inch telescope!

 

When you buy a stock OTA... one of the first things to confirm is the weight... and also determine its center of gravity.   Tom

[j.gardavsky]

Fully accessorized 6" F/5 achromatic refractor and mounted on the Cullmann Titan 200CT tripod with alt/az panhead and central geared column:

the total weight is 15kg

 

I can carry it with one hand over short distances,

 

JG

[luxo II]

OK, some exoticats for you:

 

APM/Wirth 250/3200 mak: 15 kg, plus perhaps 2kg for tube rings.

Santel MK91 228/3100 mak: 13kg.

Intes M615 mak: 4.9 kg.

Riffle MikroMak 50mm f/12: approx 700g.

 

Most suppliers websites list the weight of each OTA.

Edited by luxo II, 02 October 2019 - 08:25 PM.

[Thandal]

My OTA:  150mm CC.

 

Naked:  5.7kg

 

Dressed for the evening:  7.0kg  (A bit more when using the 2" barlow.)

Edited by Thandal, 02 October 2019 - 08:34 PM.

[stevereecy]

Thanks.  What’s “CC”?

[salico]

Mewlon 180C: some 6kg, and it is enough for me...

[bbqediguana]

Meade 2080 (OTA only): 12 lbs (5.4 kg)

[Bataleon]

I have the CPC 800 which is the standard C8 OTA on a fork mount. Deforked it's 12 lbs.

Sent from my SM-N960F using Tapatalk

[photoracer18]

OK, some exoticats for you:

 

APM/Wirth 250/3200 mak: 15 kg, plus perhaps 2kg for tube rings.

Santel MK91 228/3100 mak: 13kg.

Intes M615 mak: 4.9 kg.

Riffle MikroMak 50mm f/12: approx 700g.

 

Most suppliers websites list the weight of each OTA.

My Intes MK-67 weighs like 9.6 lbs., so your weight for the M615 seems correct.

[mclewis1]

SCT OTA weights in pounds, from about something like 10 years ago, the in house weights were done by cn member Jerry Wise ...

 

Meade LX200 OTAs http://www.meade.com/lx200r/index.html

LX200R 8" = 18
LX200R 10" = 31 (weighed inhouse)
LX200R 12" = 38 (weighed inhouse)
LX200R 14" = 69 (weighed inhouse)

 

Celestron OTAs http://www.celestron...t.php?ProdID=87

 

C-6 = 8.5

C-8 = 12.5
C-9.25 = 20
C-11 = 27.5
C-14 = 45

[whizbang]

mclewis1 is spot on.

 

My C8 weighs 12.5 pounds.

 

The 127mm Mak is 7.5 pounds.

[Nippon]

Manufacture's specs seem unreliable to me because they don't usually let you know if the weight includes standard accessories or not. One example for me is my Celestron Edge 8. I bought it as the CG5 version and Celestron's specs claims the weight is 14 pounds. I later after buying a GM8 bought a CGE dovetail from Celestron to replace the smaller CG5/Vixen dovetail and was amazed how much heavier the CGE dovetail was compared to the CG5 dovetail. I looked up the weight of the CGE version of the Edge 8 and it also claims 14 pounds. So I think the 14 pounds must be the bare OTA excluding even the dovetail it comes with. I weighed my Edge with dovetail, 50mm stock finder, stock diagonal and a 32mm Plossl and it weighed about 17 pounds. This was from standing on a bathroom scale with and without the scope in hand which is probably only accurate to within a pound.

[sink45ny]

198lbs.

[bbqediguana]

Manufacture's specs seem unreliable to me because they don't usually let you know if the weight includes standard accessories or not. One example for me is my Celestron Edge 8. I bought it as the CG5 version and Celestron's specs claims the weight is 14 pounds. I later after buying a GM8 bought a CGE dovetail from Celestron to replace the smaller CG5/Vixen dovetail and was amazed how much heavier the CGE dovetail was compared to the CG5 dovetail. I looked up the weight of the CGE version of the Edge 8 and it also claims 14 pounds. So I think the 14 pounds must be the bare OTA excluding even the dovetail it comes with. I weighed my Edge with dovetail, 50mm stock finder, stock diagonal and a 32mm Plossl and it weighed about 17 pounds. This was from standing on a bathroom scale with and without the scope in hand which is probably only accurate to within a pound.

When I weighed my Meade 2080 and got 12 lbs, that was on a digital scale in my bathroom. The scale, fortunately, provided me a weight with just the OTA so I didn't have to do any math. 

 

What I weighed was just the OTA - no dovetail bar, no diagonal, no finder... no accessories of any kind. That is likely to be the weight also provided by the manufacturer (unless otherwise specified).

 

Cheers!

 

Rick

[junomike]

NS11GPS @ 65lbs (OTA/Fork).  Tripod is another 45lbs or so.

[Chris Y]

ES 152 Mak:  Since it's in their "Firs Light" series of scopes the weight isn't listed on their website.  I called their customer service number and Scott Roberts, the company President, answered the phone.  He had one of the guys take one from the show room and weigh it on their shipping scale.  Soooo....

 

The ES 152 Mak-Cas, complete with rings, the factory supplied 25MM Super Plossl, and the RDF weighs in at 17 pounds.

 

Edit:  ...and the 2" diagonal.

Edited by Chris Y, 05 October 2019 - 06:03 PM.

[Dmagyar]

My OTA with focuser is 15.6 lbs., with rings and dovetail...No diagonal or eyepiece.

Edited by Dmagyar, 05 October 2019 - 06:05 PM.

[RTLR 12]

My Celestron Edge HD 9.25 in a set up configuration payload weight with diagonal, EP, finder scope and dew shield weighs in at 27.4 oz.

Stan

[luxo II]

Your C9.25 must be made of polystyrene coated with fairy dust !

[RTLR 12]

I may have made a small typo in my last post...lbs. I think, instead of oz. The lighter one would work better on my CG5 though.

Stan

Edited by RTLR 12, 05 October 2019 - 10:06 PM.

[stuart keenor]

12” f9 zen Maksutov Cassegrain tube alone comes in at 30kg plus dew shield and focuser etc 😳

[Jaimo!]

Intes MN-61, 22 lbs. or 10 kg

Intes MK-67, 10 lbs. or 4.5 kg.

[JoeR]

C14 60 lbs with two Losmandy dovetails and AP visual back

EdgeHD 8" 16.8 lbs with one Losdmandy dovetail & 2" visual back

Sky-Watcher 120ED 12.8 lbs with one Losmandy dovetail

AT72ED II 4.1 lbs with one vixen dovetail