What is Reddit's opinion of DAUERHAFT HD Telescope Eyepiece Metal 5mm Length 1.25Inch Sturdy with Wide 58 Degree Viewing,for Deep Space Objects?

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Hi :-)

Great advice so far!

Atmospheric seeing has to be good for over 200x to work.

If you want to invest in another eyepiece, the 4mm 58° would be more versatile, but there is no deal at the moment. However, there is a 5mm for around $25 right now (https://www.amazon.com/DAUERHAFT-Telescope-Eyepiece-1-25Inch-Viewing/dp/B08PZ9XPCG) and you can get these eyepieces for ~$20 sometimes from China. 130x should work if seeing condiitons are not optimal.

There also is the 6mm 66° for $29, sometimes $20. (https://www.amazon.com/66-Degree-Eyepiece-Telescope-Coated-Accessories/dp/B08HM5MHZM)

(http://blog.pixelgiraffe.com/wp-content/uploads/2016/03/130-650-high_3.png)

 

> sharp

Also, besides atmospheric conditions (and how high up the planets appear):

Make sure the telescope is collimated. If the mirrors are not aligned, you will loose contrast or can not really achieve good focus at high magnification.

A collimation cap or (short) cheshire-sigh-tube tool help.

No tools method: https://garyseronik.com/no-tools-telescope-collimation/

Guide: https://garyseronik.com/a-beginners-guide-to-collimation/

About tools: https://garyseronik.com/collimation-tools-what-you-need-what-you-dont/

 

> unstable

What's the issue exactly?

Did you balance the telescope in the rockerbox? https://imgur.com/urDHQwc

What did you put it on to observe? It needs to be very sturdy at that magnification.

Or is it the focuser? PTFE tape can help!

The eye-relief is very short, and even though it's not as short as a 4mm Plössl, I would find it bothersome.

5mm but cheap from the US, $25 (you can modify them. by adding a spacer between barrel and eyepiece part, if you like to tinker)

[$24 but ships from China] 1/2. Often available cheaper and in other focal-lengths via Aliexpress.

Just wanted to make sure it wasn't the eyepiece or some weird bird-jones mashup build :D

> They usually think refractors when they think of telescopes.

Yeah :-)

My dobsonian got mistaken for cannon once.

> You mentioned 58° eyepieces. What brand and from what site?

http://blog.pixelgiraffe.com/wp-content/uploads/2020/05/Mangofication-On-114900-Didgeridoo.png

https://www.amazon.com/DAUERHAFT-Telescope-Eyepiece-1-25Inch-Viewing/dp/B08PZ9XPCG/ for example. $25.29 -%3 at checkout.

Prices and availability of these listings change rapidly. usually the 58° type costs ~$40-50.

the 66° eyepieces, <=$29, are also great (larger apparent field of view, but only available down to 6mm and suffer a bit of kidney-beaning. Never had issues when using the eye-cup though).

Hello :-)

You can also consider the HR Planetary clones as they're often really cheap ($39 regularly, sometimes $20 or so on sale).

Up to 200x shouldn't be an issue, a bit lower is on the safe side regarding atmospheric seeing and performance.

The 6mm and 9mm suffer a bit of kidney-beaning/black spots if you don't look through straight; But I've never had issues when using the 6mm's eye-cup.

The HR Planetary 58° are better in that regard.

The Starguider are newer and yet better.

• Field of view simulation:

  • http://blog.pixelgiraffe.com/wp-content/uploads/2020/05/Mangofication-On-114900-Didgeridoo.png

Sale 5mm, https://www.amazon.com/DAUERHAFT-Telescope-Eyepiece-1-25Inch-Viewing/dp/B08PZ9XPCG <- instant coupon on the listing, $28 - 5%

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The Starguider are better than the BST / HR Planetary 58°, but they are still neat budget eyepieces IMHO! Especially when on sale. But I also like the 66°. For my 125/900 student telescope I've bought the 66° as they were on sale back then. r/telescopes/comments/iemlu8/666/

Either of those will have a better eye-relief than cheaper 6mm Plössl/52° type or the poor cheap 62° type.

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From an older post, German, but you can just look at the graph or use a translator.

> Older performance tests (German for the most part, some have English versions) > > Sharpness curve of a 6mm 66degree eyepiece http://astro-okulare.de/eigen/reww06.htm > > Sharpness curve of a SW 6,3mm Plössl http://astro-okulare.de/skysp63.htm > > Sharpness of a 6mm super plössl http://astro-okulare.de/tssp06.htm > > Another 6mm http://astro-okulare.de/solpl06.htm > > Sharpness curve of a tmb HR Planetary (clone) http://astro-okulare.de/tspt7.htm > > 5mm Nagler http://astro-okulare.de/tvnag5.htm > > gold-line / 66° > > http://www.astro-okulare.de/eigen/reww06.htm > > http://www.astro-okulare.de/eigen/reww09.htm > > http://www.astro-okulare.de/eigen/reww15.htm > > HR Planetary / 58° > > http://www.astro-okulare.de/tspt5.htm > > http://www.astro-okulare.de/tspt7.htm >