Opinions on Svbony SV48 as grab & go telescope

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akdwivedi
Posts: 12
Joined: Sat May 06, 2017 1:01 am
Favourite scope: celestron

Opinions on Svbony SV48 as grab & go telescope

Post by akdwivedi »

I am trying to restart watching the skies. I had a nextsar 6se for long but due to heavy setup I hardly took it out. Maybe used no more then te time in three years, so I sold off that set.

Looking for a grab and go set. This telescope caught my attention. Svbony sv48 a 90mm f/5.5 achromatic with two inch Crawford focussed. It’s retailing for less than 350.

Anupyukt opinions. Other one on the radar is sv503 80mm f/7 Ed, but that’s twice the price,

Thanks much.

Hardwarezone
Posts: 273
Joined: Fri May 17, 2013 2:50 am
Favourite scope: maksutov

Re: Opinions on Svbony SV48 as grab & go telescope

Post by Hardwarezone »

According to the chart , 90mm F5.5 is around the same CA as 80mm F/5

Image

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rlow
Posts: 2342
Joined: Fri Oct 31, 2003 7:36 pm
Location: Jurong

Re: Opinions on Svbony SV48 as grab & go telescope

Post by rlow »

Hi, I have not used either Svbony scopes you mentioned, but I have owned & used several achromats like ST-80 f/5, WO Megrez 80mm f/7, Kenko 120mm f/5, Celestron 150mm f/5 & SkyWatcher 150mm f/8. I would think the Svbony sv48 90mm f/5.5 achromatic may be alright for just low-power viewing but it probably has too much chromatic aberration (CA) which is not good for viewing at higher magnification, eg. planets etc. If you google this, there is also hardly any review online, that speaks for itself. Between the two, sv503 80mm f/7 ED is probably a better choice, but still some residual CA visible at higher magnification, and there are a few online reviews.

I would prefer for a grab-and-go set, to get a C5 OTA (just the optical tube assembly), on a Manfrotto 410 gearhead mount and a standard-sized camera tripod. Relatively light and compact setup. SCTs like C5 don't have CA.

You can also consider getting from Singastro "Buy and Sell", there you can get good value items in good to excellent condition.
Richard Low

akdwivedi
Posts: 12
Joined: Sat May 06, 2017 1:01 am
Favourite scope: celestron

Re: Opinions on Svbony SV48 as grab & go telescope

Post by akdwivedi »

Happy new year folks.

Hardwarezone and Richard thanks for your comments. Very useful information. I did hear about CA on f/5 - f/8 refractors. I do have a C5 and a small tripod, but just wanted to play around with a refractor. Maybe I should save and get a ED/APO refractor later on.

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