Pentax SMC-XL 40mm


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Subject: Re: vote by xxx.xxx.186.17
By: Anonymous (xxx.xxx.200.148)
In Reply to: Anonymous (xxx.xxx.186.17) (Original Vote)
Date: 02/15/2002 01:14:44 pm PST
>I have used one of these in a 8" f10 sct, a 5" f10 sct and a 70mm f6.8 pronto. I must admit I am stunned when individuals talk about field curvature, coma and astigmatism in this ep. I see very little field curvature (I must admit there is more at f6.8 than at f10 tho), a very, very slight amount of coma and as far as the astigmatism, I think there is more in my eyes than in the EP (and I don't wear glasses). At 2/3 the price of the panoptic 35, and about 1/3 the price of the nagler 31, there is no other eyepiece that I have seen that comes close to the performance offered by the Pentax for the price. It is a supurb finder ep in my pronto, offering a fantastic 5.25 deg field of view. Its also a wonderful viewing EP in my 8" and 5" SCT's. If you have the bucks, you can go for the Nagler 31. If you have to live in the real world (like most of us), buy the Pentax 40, and you will have enough money left over to buy two more premium EP in shorter FL's - and get 3 ep's for the cost of the Nagler.
>
>Bottom line? Its a beautiful ep, its no panoptic or nagler, but its the next best thing.


What? This eyepiece steps all over the Panoptic and the Nagler's. Uncle Al is the one that should be trying to catch up the the Pentax line.


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Subject: Pentax 40mm SMC XL with C8
By: Anonymous (xxx.xxx.118.92)
Date: 10/31/2002 04:00:35 pm PST
It's really excellent. This is the most comfortable eyepiece I've ever used, the eye cup is superb and work very very well.

The color fidelity is very very good, and the color on the stars are readily seen. It is very easy and nature to see color with this one, even on very dim stars and it would require some attention to see the same with my Plossl and TV Zoom.

I have to spend more time on it before making a vote. But in short, I want the whole set, or maybe its zoom model...


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Subject: Re: vote by xxx.xxx.186.17
By: Anonymous (xxx.xxx.97.167)
In Reply to: Anonymous (xxx.xxx.200.148) (Original Message)
Date: 04/10/2005 03:43:47 pm PST
Hello,

When was the last time you used a fast F4.5 - 5 newt with this EP? After you use this EP in a fast newt,,, get back to me.

This EP is very, very good. But a fast scope will really test edge of field performance. The problem is accomodating a fast scope,,, not the EP.

michael


>>I have used one of these in a 8" f10 sct, a 5" f10 sct and a 70mm f6.8 pronto. I must admit I am stunned when individuals talk about field curvature, coma and astigmatism in this ep. I see very little field curvature (I must admit there is more at f6.8 than at f10 tho), a very, very slight amount of coma and as far as the astigmatism, I think there is more in my eyes than in the EP (and I don't wear glasses). At 2/3 the price of the panoptic 35, and about 1/3 the price of the nagler 31, there is no other eyepiece that I have seen that comes close to the performance offered by the Pentax for the price. It is a supurb finder ep in my pronto, offering a fantastic 5.25 deg field of view. Its also a wonderful viewing EP in my 8" and 5" SCT's. If you have the bucks, you can go for the Nagler 31. If you have to live in the real world (like most of us), buy the Pentax 40, and you will have enough money left over to buy two more premium EP in shorter FL's - and get 3 ep's for the cost of the Nagler.
>>
>>Bottom line? Its a beautiful ep, its no panoptic or nagler, but its the next best thing.
>
>
> What? This eyepiece steps all over the Panoptic and the Nagler's. Uncle Al is the one that should be trying to catch up the the Pentax line.


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Subject: Re: vote by xxx.xxx.186.17
By: Anonymous (xxx.xxx.222.235)
In Reply to: Anonymous (xxx.xxx.97.167) (Original Message)
Date: 10/02/2005 12:42:41 am PST
>Hello,
>
>When was the last time you used a fast F4.5 - 5 newt with this EP? After you use this EP in a fast newt,,, get back to me.
>
>This EP is very, very good. But a fast scope will really test edge of field performance. The problem is accomodating a fast scope,,, not the EP.
>
>michael

Get back to you? Maybe he/she doesn't care about your fast Newtonian? Shocking as this may be not everyone wants a focal ratio < 5.


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