Televue Eyepieces - don't miss the boat!

Lismore Bloke (Paul) · #1 22-10-2009, 07:17 AM

With the Aussie $ at a high level compared to the US $, now is the time, I doubt if they will be much cheaper. Any visual observers who are not using a high grade eyepiece line (Nagler, Pentax, Vixen LVW) don't know what they're missing. I am just adding to my Nagler lineup - 22, 17 (still coming), 12, 9, 7. I tried the 7 and 9 last night - wow! All my old 1980's style eyepieces and the barely adequate GSO ones are now officially retired.

erick (Eric) · #2 22-10-2009, 02:37 PM

OMG! Pan 27mm down to $399

That hole in my eyepiece case might get filled sooner rather than later!

Paddy (Patrick) · #3 22-10-2009, 02:47 PM

I'm looking forward to my first night out with my new 17mm T4 Nagler tonight. Yum! Now have an all 82 deg fleet - 28mm UWAN and 17,13 & 9mm Naglers.

Lismore Bloke (Paul) · #4 22-10-2009, 03:04 PM

Quote:

Originally Posted by Paddy

I'm looking forward to my first night out with my new 17mm T4 Nagler tonight. Yum! Now have an all 82 deg fleet - 28mm UWAN and 17,13 & 9mm Naglers.

Hello Patrick,
How do you find the UWAN 28mm, in comparison to the Televue products?

ngcles · #5 22-10-2009, 03:31 PM

Hi Paul,

Quote:

Originally Posted by Lismore Bloke

How do you find the UWAN 28mm, in comparison to the Televue products?

I did a side by side comparo of the 26mm T5 and 28mm UWAN about 18 months ago in my f/4.9 and the UWAN was every bit as good as the 26mm T5. Was equally sharp at the edges, high quality construction, coatings very good. Very impressed with it. Cheap compared to the T6 too ... Would be proud to have one in my ep case.

Same night, I also tried the 16mm UWAN which was also excellent but I thought my 16mm T2 just shaded it contrast wise -- but not a lot in it really.

Best,

Les D

Lismore Bloke (Paul) · #6 22-10-2009, 04:11 PM

Quote:

Originally Posted by ngcles

Hi Paul,

I did a side by side comparo of the 26mm T5 and 28mm UWAN about 18 months ago in my f/4.9 and the UWAN was every bit as good as the 26mm T5. Was equally sharp at the edges, high quality construction, coatings very good. Very impressed with it. Cheap compared to the T6 too ... Would be proud to have one in my ep case.

Same night, I also tried the 16mm UWAN which was also excellent but I thought my 16mm T2 just shaded it contrast wise -- but not a lot in it really.

Best,

Les D

That's very interesting Les. I didn't know a lot about the Willam Optics lineup. The only other range I was considering was the Vixen LVW. I have heard nothing but good opinions on them. The usable extra width of field that the Naglers have, tipped the balance in their favour. It also helps that the Nagler range is so comprehensive, not many focal lengths are not covered.

Jen · #7 22-10-2009, 06:03 PM

Quote:

Originally Posted by erick

OMG! Pan 27mm down to $399

That hole in my eyepiece case might get filled sooner rather than later!

And which case would that be Eric you have enough toys

Lismore Bloke (Paul) · #8 22-10-2009, 07:21 PM

Ah Jen you can never gave too many astro toys, that's what tax cheques are for

CoombellKid · #9 22-10-2009, 07:47 PM

Forget yer pano's... yer 26mm t5's & yer william tells... all ya need in the
lower FL's is a 20mm t5 and a 31mm t5

even a 35mm pano
with an ever so slight increase in FOV doesn't match a 31mm t5

Cheers,CS

Lismore Bloke (Paul) · #10 22-10-2009, 07:58 PM

Quote:

Originally Posted by CoombellKid

Forget yer pano's... yer 26mm t5's & yer william tells... all ya need in the
lower FL's is a 20mm t5 and a 31mm t5

even a 35mm pano
with an ever so slight increase in FOV doesn't match a 31mm t5

Cheers,CS

Rob, I think the wife would shoot me if I lined up asking for a 31 t5 after ordering a 17, 9 and 7, plus 2" UHC filter, even at current prices. I hope the Aussie stays high and the Yankie low until Christmas, I might have a chance then.

mac (Matt) · #11 22-10-2009, 08:52 PM

Who do you order them from in the USA?

ngcles · #12 22-10-2009, 09:29 PM

Hi Rob & All,

Quote:

Originally Posted by CoombellKid

Forget yer pano's... yer 26mm t5's & yer william tells... all ya need in the
lower FL's is a 20mm t5 and a 31mm t5

even a 35mm pano
with an ever so slight increase in FOV doesn't match a 31mm t5

Cheers,CS

Well, provided the 35mm Pan or 31 T5 don't produce exit pupil issues in your individual telescope -- as it would in the Argus Panoptes.

See this thread here for a good discussion on the principles:

http://www.iceinspace.com.au/forum/s...ght=exit+pupil

But that 6mm exit-pupil rule imposes a lower magnification limit on my 'scope of x76. Both the 31mm T5 and the 35mm Pan both exceed this in my 'scope and that is why my longest fl eyepiece is the 26mm T5.

Don't get me wrong -- they're both great eyepieces but with short f/ratios you could end up with an exit pupil so large your iris will effectively vignette the telescope aperture by 10 or even 15%.

The 35mm Pan would produce a 7.2mm exit pupil in my 'scope making an effective light loss of over 16% assuming I can still open my iris up to 6mm. If I can't make 6mm (I haven't measured lately), the loss is even higher!

Not good if you want all the light you paid for ...

Best,

Les D

Blue Skies (Jacquie) · #13 22-10-2009, 09:52 PM

ooooh! Even though I'm not doing much observing at the moment I told my self if prices ever got this low again I should just go for it! hmmm the equipment kitty might have to get raided for an early christmas present.

dpastern (Dave Pastern) · #14 22-10-2009, 10:12 PM

If I wasn't busy buying astro software over the next Six weeks...I'd be investing in TV eyepieces...

Dave

Lismore Bloke (Paul) · #15 22-10-2009, 10:36 PM

Les has a very good point in relation to the effects of the exit pupil size, especially in reflectors. Really, anyone considering purchasing eyepieces would do well to read through the excellent information on the Televue web site, even if they are buying another brand.

http://www.televue.com/engine/page.asp?ID=131

mozzie (Peter) · #16 23-10-2009, 07:50 PM

i couldnt resist ordered a 35mm pan the price is to good to let go that will compliment the 17 nag and the 26 nag, 3 nice eyepieces that should be enough

you never know cant wait to get it lets hope for some clear weather
mozzie

Lismore Bloke (Paul) · #17 23-10-2009, 09:03 PM

Quote:

Originally Posted by mozzie

i couldnt resist ordered a 35mm pan the price is to good to let go that will compliment the 17 nag and the 26 nag, 3 nice eyepieces that should be enough

you never know cant wait to get it lets hope for some clear weather
mozzie

Good to see someone else can share the blame for the storms and clouds. My 17 T4 hasn't turned up yet, I think someone on this site bought Bintel's last one.

mozzie (Peter) · #18 24-10-2009, 06:24 AM

Quote:

Originally Posted by Lismore Bloke

Good to see someone else can share the blame for the storms and clouds. My 17 T4 hasn't turned up yet, I think someone on this site bought Bintel's last one.

nice eyepiece youll love the views with it i had to ring michael and get bintels bank accounts elise will kill me if she finds out i bought more gear
mozzie

GrahamL · #19 24-10-2009, 07:51 AM

Yeah I lent my 26mm gso to a guy about a year ago Paul and just never bothered to get it back, guess that means its retired to.

No more eypieces for me , but having a look through Robs pst
the other week is about to cost me.

Lismore Bloke (Paul) · #20 24-10-2009, 07:53 AM

Quote:

Originally Posted by mozzie

nice eyepiece youll love the views with it i had to ring michael and get bintels bank accounts elise will kill me if she finds out i bought more gear
mozzie

I know what you mean Peter, my astro toys cost me a visit to the jewellers shop. I don't mind, we both win and that's important.

The weather looked a bit nasty down your way yesterday, how did you go?