Ebay 30mm/80deg / 2" eyepiece

"Szaki" wrote in message
news:yy_Mb.48266$xy6.116194@attbi_s02...
Any one try this 2" 30mm eyepiece, selling on ebay, for $95? It has 80 deg
field.

http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=29 954
Item number: 2979229461

Any good, seems very cheap?

Julius




one can buy the same eyepiece from Astrobuffet for $75 in its cheapest
incarnation (I believe no bolt case and maybe slight blems ) . Or a very
similar one (but not identical) brand new from Apogee , the Widescan 32mm ,
2" , 70deg FOV for something like $69 .

Best Regards,
Matt Tudor

hi
what about this???

http://www.iteastronomy.com/products...w.php?p=KoMK80

seems like UO has their own 30mm 80deg konig for 300$
does anyone know anything about this eyepiece?

hi
what about this???

http://www.iteastronomy.com/products...w.php?p=KoMK80

seems like UO has their own 30mm 80deg konig for 300$
does anyone know anything about this eyepiece?

hi
what about this???

http://www.iteastronomy.com/products...w.php?p=KoMK80

seems like UO has their own 30mm 80deg konig for 300$
does anyone know anything about this eyepiece?

hi
what about this???

http://www.iteastronomy.com/products...w.php?p=KoMK80

seems like UO has their own 30mm 80deg konig for 300$
does anyone know anything about this eyepiece?

On Tue, 13 Jan 2004 22:45:50 GMT, "Szaki" wrote:

Any one try this 2" 30mm eyepiece, selling on ebay, for $95? It has 80 deg
field.
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=29 954
Item number: 2979229461

Any good, seems very cheap?

Julius

I've got a BW Optik 30/80 which is the same eyepiece. In my F7.5 scope
it's pretty sharp in the center but the outer 1/3 of the field is very
fuzzy. All the stars around the edge look like Globulars. I guess this
is OK if you like Globs The coating seems a little heavy in a few
places though it doesn't seem to have any affect on the view. The eye
relief is pretty nice. It's not hard to look through.

It's not a Nagler, but for the price it's OK.

scotty

On Tue, 13 Jan 2004 22:45:50 GMT, "Szaki" wrote:

Any one try this 2" 30mm eyepiece, selling on ebay, for $95? It has 80 deg
field.
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=29 954
Item number: 2979229461

Any good, seems very cheap?

Julius

I've got a BW Optik 30/80 which is the same eyepiece. In my F7.5 scope
it's pretty sharp in the center but the outer 1/3 of the field is very
fuzzy. All the stars around the edge look like Globulars. I guess this
is OK if you like Globs The coating seems a little heavy in a few
places though it doesn't seem to have any affect on the view. The eye
relief is pretty nice. It's not hard to look through.

It's not a Nagler, but for the price it's OK.

scotty

On Tue, 13 Jan 2004 22:45:50 GMT, "Szaki" wrote:

Any one try this 2" 30mm eyepiece, selling on ebay, for $95? It has 80 deg
field.
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=29 954
Item number: 2979229461

Any good, seems very cheap?

Julius

I've got a BW Optik 30/80 which is the same eyepiece. In my F7.5 scope
it's pretty sharp in the center but the outer 1/3 of the field is very
fuzzy. All the stars around the edge look like Globulars. I guess this
is OK if you like Globs The coating seems a little heavy in a few
places though it doesn't seem to have any affect on the view. The eye
relief is pretty nice. It's not hard to look through.

It's not a Nagler, but for the price it's OK.

scotty

On Tue, 13 Jan 2004 22:45:50 GMT, "Szaki" wrote:

Any one try this 2" 30mm eyepiece, selling on ebay, for $95? It has 80 deg
field.
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=29 954
Item number: 2979229461

Any good, seems very cheap?

Julius

I've got a BW Optik 30/80 which is the same eyepiece. In my F7.5 scope
it's pretty sharp in the center but the outer 1/3 of the field is very
fuzzy. All the stars around the edge look like Globulars. I guess this
is OK if you like Globs The coating seems a little heavy in a few
places though it doesn't seem to have any affect on the view. The eye
relief is pretty nice. It's not hard to look through.

It's not a Nagler, but for the price it's OK.

scotty

Any good, seems very cheap?

Julius

As others have said, it depends on the scope you are using it with. I have one
of these eyepieces, for the $95 it is a pretty decent deal.

I use it in my Pronto for terestrial viewing (birds) and digiscoping because
the edge distortion is not so noticeable because most often it is out of focus
because of depth of field issues. The foreground and the background will be
out of focus anyway. I like it because I am not afraid of damaging the
eyepiece by holding the camera lens to the glass.


Astronomy wise, I the Pronto at F6.9, the edge distortion is distracting. In
an F5, things are significantly worse. It is usable if you can stand the edge
distortion which starts fairly close to the center, it certainly provides a
nice wide FOV but it can get ugly at times, especially if there is something
bright near the edge.

I found a used TV Widefield 32 mm on Astromart for $140. It has a 66 degree
FOV. Not as wide as the eyepiece in question but much sharper overall, in the
Pronto, the entire FOV seems sharp, in my F5 Asian DOB, the edge distortion is
there but the overall view is much superior to the 30mm 80 degree eyepiece. It
is even useful at F4.

Bottomline: Its a reasonable deal for $95 but it is only a marginal eyepiece
IMHO.

Got some decent bird images with it though....

jon