NAGLER TYPE 4... 17mm

[boyfromlincs]

Im after a 17mm ep to use in a 12 inch solid tubed dob, would the mighty nagler cause any balance issues in the dob or would i be better off with a delos ?

[Stargazer_00]

Depends what else you have on the focuser end of your scope, and the altitude bearing arrangement on your scope itself I guess?

[michael.h.f.wilkinson]

The Nagler is about 360 grams heavier, so the difference is not huge. The 17T4 is a cracking good EP, but so is the Delos (I only have the 8, and that is very nice indeed). The real difference is FOV. For DSOs I generally prefer the 82 deg FOV of the Naglers, but for planetary work 68-72 deg is fine.

[boyfromlincs]

its a manual dob with ball bearing mount, i have the delos in 8 and 12 mm and as you say they are great eps.. just fancied a nagler with decent eye relief as i wear glasses.. come to think of it i have the panoptic in 27mm soit should be ok with the bit of extra weight.. thanks for ur help.. regards keith...

[alan potts]

I would go for the Delos myself only because it costs less. I feel that is may well be a better eyepiece than the Nagler but only by a short head, at this level there are never going to be massive differences. The other issue is of course the smaller FOV but if you could live with that, go Delos.

I must point out I do not have these two but I do have many of the mates.

Alan

[Pig]

I have the 17.3mm Delos and I absolutely love it and would not hesitate to recommend it.

As a guide for you I used it in my brothers 1500mm focal length scope last night and I could almost fit the double cluster in the FOV, obviously in the Nagler at 82 Deg there would be an even better fit.

Like Alan I do not have the Nagler to give a comparison 

[Doug]

Hi

I use a 17mm Nagler on a 12" f/5 and it's gives wonderful view no problem what so ever

clear skies

[jetstream]

And then there is the Ethos 17mm.....29.6mm field stop....1.55lbs.....about 25% bigger TFOV than 17mm Nagler...

[Damo636]

At this focal length in a 12" dob, I'd personally prefer the wider field of the Nagler.

[memoryman]

My scope is f4 and the T4 17mm gives sharp, bright, clear views. If I could only keep one EP, it would the T4 17mm!

[Doug]

And then there is the Ethos 17mm.....29.6mm field stop....1.55lbs.....about 25% bigger TFOV than 17mm Nagler...

fancy putting that in to his head

Oh Gerry

Fancy putting that in to his head