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Best Wide Field Refractor ?

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#1 theflop

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Posted 15 January 2013 - 01:46 AM

I would like to take some high quality wide field shots. What do you recommend for a refractor under $800-1000? I would like the widest view possible with the highest quality for the price. Discuss...

:question:

#2 Jon Isaacs

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Posted 15 January 2013 - 07:06 AM

I would like to take some high quality wide field shots. What do you recommend for a refractor under $800-1000? I would like the widest view possible with the highest quality for the price. Discuss...

:question:


Refractors have field curvature, the shorter the focal length, the greater the curvature. For photography, one needs to correct for field curvature so either a scope with a dedicated field flattener or a separate field flattener is required.

The AT65EDQ looks like a very good scope for what you want to do:

AT65EDQ

It is specifically designed for wide field astrophotography, It has the short focal length necessary, it is a quad design an FPL-53 triplet in front with a ED field flattener in back. It has a rack and pinion focuser to handle the weight of your camera...

Jon

#3 PhilCo126

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Posted 15 January 2013 - 07:50 AM

The individual 152/900mm GroƟfeldrefraktor with 3" crayford focuser is a great (semi-Apo)from Teleskop-express.de
:imawake:

#4 RogerRZ

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Posted 15 January 2013 - 09:25 AM

The individual 152/900mm GroƟfeldrefraktor with 3" crayford focuser is a great (semi-Apo)from Teleskop-express.de
:imawake:



"Highest quality", "semi-apo" and "photography": Pick any two...


Another vote here for the AT65...

#5 PhilCo126

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Posted 15 January 2013 - 09:37 AM

Well, it's a hard choice with a budget of Euro 700.00

My choice for an AstroPhotography refractor was = http://www.cloudynig...hp?item_id=2800

#6 snommisbor

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Posted 15 January 2013 - 12:46 PM

Honestly you really couldnt go wrong with a nice camera lens for wide field imaging. If you are using a DSLR get a good quality lens and you kill two birds with one stone. A lens for day and night. The guy at Astro Anarchy takes sick photos that are shot with a camera lens.

#7 Jon Isaacs

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Posted 15 January 2013 - 02:52 PM

Well, it's a hard choice with a budget of Euro 700.00



It's not so tough if the criteria is the widest possible field of view because that means one can use a small scope, short focal length scope or maybe a camera lens if it doesn't have issues with chromatic aberration.

Jon

#8 Eddgie

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Posted 15 January 2013 - 09:48 PM

Well, you can get a very wide field with a small scope, but a used Televue Genesis is a big scope with a big field.

Used the Genesis is less than $1000. Seen them for $800.

#9 BarrySimon615

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Posted 16 January 2013 - 12:07 AM

This may help you in deciding - - -

http://www.bbastrodesigns.com/rft.html

if not that, try this -

http://www.robertmartinayers.org/RFT/

Personally I really like my home-built Jaegers 6" f/5 (laid down September 78, commissioned January 79, shakedown cruise "ongoing")

Barry Simon

#10 theflop

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Posted 16 January 2013 - 12:55 AM

After looking at the net I will surely be purchasing an AT65EDQ. This is exactly what I am looking for! The 480mm is perfect and the colors of the stars seemed great. Thanks for the info!

#11 rflinn68

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Posted 16 January 2013 - 10:17 AM

I really like my AT65EDQ. It is one fine scope for widefield imaging. The focal length is 420mm, not 480. With a rotating camera angle adjuster, built-in field flattener, FPL-53 optics, sliding dew shield, included dovetail, very nice mounting rings, and a very capable factory focuser, it is hard to beat.

#12 theflop

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Posted 17 January 2013 - 03:35 AM

About 12 hours ago I placed my order for the AT65EDQ from Astronomics by phone. I had a great chat with them and I placed the order for $584 with the Cloudy Nights discount. They said they will receive the scope by air-mail in 4 days then ship it to me so I am very happy with this timing. It leaves little time for me to change my mind! It will be nice as a wide-field scope and as an autoguiding scope placed upon my AT6RC. I found tons of great astrophotos on the net (such as Flickr and Astrobin) that people took with it and it looks like an amazing scope. It seems a far cry better than my first refractor, the Orion 120ST which had huge CA! The 120ST represented stars as big fuzzy blue balls. Thanks for the replies, pals!

#13 curiosidad

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Posted 17 January 2013 - 06:14 AM

Hello,
For visual wide Field it is comparable to Takahashi FS-60 ?
Are very like in size and quelities?
Best

#14 rflinn68

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Posted 17 January 2013 - 10:01 AM

Congrats! Thats great that they are getting some more that quick!! I figured you'd have to buy used if you didnt want to wait. Thats awesome!! I'm 100% positive you will enjoy yours as much as I do mine. Be sure to post some pics when you get it :drool5:

#15 Tamiji Homma

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Posted 17 January 2013 - 11:23 AM

Hello,
For visual wide Field it is comparable to Takahashi FS-60 ?
Are very like in size and quelities?
Best


Here is size comparison, not exactly FS-60 but FS-60Q + ExtenderQ 1.6x and AT65EDQ.

To make FS-60Q to FS-60CB, you remove CQ 1.7X Barlow/Flattener.

Both scopes have some challenge (inward focus distance with 2" diagonal) to utilize 2" full aperture eyepiece for wide TFOV visual use. I am satisfied with quality of viewing experience with both scopes.

Posted Image

Tammy

#16 theflop

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Posted 17 January 2013 - 02:02 PM

I will be using my scope with a self-modified Canon 450D. I have the 2" T-ring which I use with the AT6RC. I will post pics of everything from opening the box to mounting it in the observatory. This is now my 4th scope purchase and I feel I am just getting started...






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