[FOR SALE] Takahashi Mewlon 250 CR

[Paul Haese]

I have a Takahashi Mewlon 250 CR for sale. It is in very good condition and has produced very nice images. It works well with a ZWO 2600 MM. See attached images taken by Jarrod Koh.

I am looking to sell this excellent instrument for $4500 ONO.

Please PM for interest and offers.

[SpaceTas (Stefan)]

Despite looking through takahashi sites etc I have not found out what the are the differences between the older CR model and the newer CRS model.
So what does the CR stand for?


Also, how old is this Mewlon?


Thanks

[Atmos (Colin)]

There isn’t a lot of differences between the old and new Mewlon250.
The new one comes with an integrated field flattener as standard whereas it was an optional extra on the old one; it pushed it from F/12 to F/10.
The new one has four spider veins where as the old Mewlon had 3 (6 spikes as opposed to 4). As far as I’m aware the focus motor in the secondary didn’t change but the new Mewlon has a port (RS-232?) for motor control via computer as opposed to just hand controller as well as fans in the back plate.

[Paul Haese]

Originally Posted by SpaceTas

Despite looking through takahashi sites etc I have not found out what the are the differences between the older CR model and the newer CRS model.
So what does the CR stand for?


Also, how old is this Mewlon?


Thanks

As Colin has stated those would be the differences. This unit has the field corrector which is inside and fitted to the telescope. It is not on the outside of the scope. It is an f10.

I don't know what CR stands for in this context. As a guess I am inclined to think it might be corrected but I could be wrong.

I think it was made in 2010, serial number is 10035.

[Hans Tucker (Hans)]

Originally Posted by Paul Haese

As Colin has stated those would be the differences. This unit has the field corrector which is inside and fitted to the telescope. It is not on the outside of the scope. It is an f10.

I don't know what CR stands for in this context. As a guess I am inclined to think it might be corrected but I could be wrong.

I think it was made in 2010, serial number is 10035.

CR just means that the Takahashi Mewlon-300 CR Corrector has been installed into an earlier model Mewlon. In this case this scope appears to be a Mewlon 250S with 300 CR Corrector.

The newer CRS has this Corrector factory installed along with cooling fans and a new style electric secondary focuser.

[Equator (Joseph)]

Still selling it?

[Paul Haese]

Originally Posted by Equator

Still selling it?

Yes but I am not sending it OS for the price. Freight is extra and payment has to hit my bank prior to sending.

[furyz (Kristian)]

Interested, I heard a lot of great things about the Mewlon scopes.

I am not finding a lot of info about the 250CR, all the links online talk about the CRS specifically.

Could you share a few more photos of the front and back of the scope?

Just trying to clarify what others have said about comparing the old and new Mewlon 250 versions... Does this one have 4 or 3 spider vanes?

Also you wouldnt happen to have the Takahashi 0.73x Reducer as well to sell with it?

[Paul Haese]

Originally Posted by furyz

Interested, I heard a lot of great things about the Mewlon scopes.

I am not finding a lot of info about the 250CR, all the links online talk about the CRS specifically.

Could you share a few more photos of the front and back of the scope?

Just trying to clarify what others have said about comparing the old and new Mewlon 250 versions... Does this one have 4 or 3 spider vanes?

Also you wouldnt happen to have the Takahashi 0.73x Reducer as well to sell with it?

Three spider vanes, it does not have fans in the back of the scope you remove the outer casing for imaging and cooling. I don't have a reducer at all, The secondary focuser is via first generation hand controller.

I'll try to upload some images of the front and back of the scope in the next few days.

[furyz (Kristian)]

Originally Posted by Paul Haese

Three spider vanes, it does not have fans in the back of the scope you remove the outer casing for imaging and cooling. I don't have a reducer at all, The secondary focuser is via first generation hand controller.

I'll try to upload some images of the front and back of the scope in the next few days.

Understood, thank you very much for the confirmation. I will do some searching and see what I can find in terms of an appropriate reducer, etc. Will get back to you if I decide to go ahead.