Orion OMC200

Hi,

Does anyone have experience of this scope?

Is f20 too big for deep sky?

Is the OMC250 a better 'all rounder' because is is 10" (compared to 8") and
f9 (I think)? They are about the same price.

Thanks in advance

Ian

"Ian Piper" <ip0800@NOSPAM.yahoo.co.uk> wrote in message
news:iLWdnXKnh75qCinYnZ2dnUVZ8q6onZ2d@bt.com...
> Hi,
>
> Does anyone have experience of this scope?
>
> Is f20 too big for deep sky?
Basically, yes.

> Is the OMC250 a better 'all rounder' because is is 10" (compared to 8")
> and f9 (I think)? They are about the same price.
>
> Thanks in advance
The OMC200, is very much a custom long focal length scope. It also has a
tiny fully illuminated field. It has a very small central obstruction, and
great baffling, giving 'refractor' style contrast for small FOV's, in
particular planets, but the 'downside' of this, is that it is never going
to be an instrument for much wider FOV's. The OMC250, won't match it on
planets (the large CO, will give degraded contrast, particularly for
visual use), but is far the better deep sky unit.
I have one of the first 'deluxe' spec OMC200's that was ever produced.
Bought it as a planetary scope, and have not regretted it for this.
However for wider fields, it is not the scope to use.

Best Wishes

Thanks

"Roger Hamlett" <rogerspamignored@ttelmah.demon.co.uk> wrote in message
news:YB4th.45208$RL5.28632@newsfe2-gui.ntli.net...
>
> "Ian Piper" <ip0800@NOSPAM.yahoo.co.uk> wrote in message
> news:iLWdnXKnh75qCinYnZ2dnUVZ8q6onZ2d@bt.com...
>> Hi,
>>
>> Does anyone have experience of this scope?
>>
>> Is f20 too big for deep sky?
> Basically, yes.
>
>> Is the OMC250 a better 'all rounder' because is is 10" (compared to 8")
>> and f9 (I think)? They are about the same price.
>>
>> Thanks in advance
> The OMC200, is very much a custom long focal length scope. It also has a
> tiny fully illuminated field. It has a very small central obstruction, and
> great baffling, giving 'refractor' style contrast for small FOV's, in
> particular planets, but the 'downside' of this, is that it is never going
> to be an instrument for much wider FOV's. The OMC250, won't match it on
> planets (the large CO, will give degraded contrast, particularly for
> visual use), but is far the better deep sky unit.
> I have one of the first 'deluxe' spec OMC200's that was ever produced.
> Bought it as a planetary scope, and have not regretted it for this.
> However for wider fields, it is not the scope to use.
>
> Best Wishes
>

	#1
Ian Piper	Orion OMC200 Hi, Does anyone have experience of this scope? Is f20 too big for deep sky? Is the OMC250 a better 'all rounder' because is is 10" (compared to 8") and f9 (I think)? They are about the same price. Thanks in advance Ian

	#2
Roger Hamlett	Re: Orion OMC200 "Ian Piper" <ip0800@NOSPAM.yahoo.co.uk> wrote in message news:iLWdnXKnh75qCinYnZ2dnUVZ8q6onZ2d@bt.com... > Hi, > > Does anyone have experience of this scope? > > Is f20 too big for deep sky? Basically, yes. > Is the OMC250 a better 'all rounder' because is is 10" (compared to 8") > and f9 (I think)? They are about the same price. > > Thanks in advance The OMC200, is very much a custom long focal length scope. It also has a tiny fully illuminated field. It has a very small central obstruction, and great baffling, giving 'refractor' style contrast for small FOV's, in particular planets, but the 'downside' of this, is that it is never going to be an instrument for much wider FOV's. The OMC250, won't match it on planets (the large CO, will give degraded contrast, particularly for visual use), but is far the better deep sky unit. I have one of the first 'deluxe' spec OMC200's that was ever produced. Bought it as a planetary scope, and have not regretted it for this. However for wider fields, it is not the scope to use. Best Wishes

	#3
Ian Piper	Re: Orion OMC200 Thanks "Roger Hamlett" <rogerspamignored@ttelmah.demon.co.uk> wrote in message news:YB4th.45208$RL5.28632@newsfe2-gui.ntli.net... > > "Ian Piper" <ip0800@NOSPAM.yahoo.co.uk> wrote in message > news:iLWdnXKnh75qCinYnZ2dnUVZ8q6onZ2d@bt.com... >> Hi, >> >> Does anyone have experience of this scope? >> >> Is f20 too big for deep sky? > Basically, yes. > >> Is the OMC250 a better 'all rounder' because is is 10" (compared to 8") >> and f9 (I think)? They are about the same price. >> >> Thanks in advance > The OMC200, is very much a custom long focal length scope. It also has a > tiny fully illuminated field. It has a very small central obstruction, and > great baffling, giving 'refractor' style contrast for small FOV's, in > particular planets, but the 'downside' of this, is that it is never going > to be an instrument for much wider FOV's. The OMC250, won't match it on > planets (the large CO, will give degraded contrast, particularly for > visual use), but is far the better deep sky unit. > I have one of the first 'deluxe' spec OMC200's that was ever produced. > Bought it as a planetary scope, and have not regretted it for this. > However for wider fields, it is not the scope to use. > > Best Wishes >