I am intending to acquire a red dot finder to supplement my existing finder scope. Have read a few reviews on the different RDF's available on the market, but I still have not decided which one to buy.
Would appreciate comments from those who already use RDF's as to which one I should purchase (and which ones I should stay clear of).
Stay away from those: http://www.ebay.com.au/itm/Tasco-Red...item256b83f8bd
I have one and it is not accurate, the red dot moves too much away from target in one corner (away from LED.. because it is too short for the size of the reflective lens)... I am not using it any more.
EDIT:
I replaced the resistors in those metal ones, their values were too small for night use (LEDs were too bright. starting from 22k and lower I obtained suitable illumination.
I do have red-dot finders for quick find wider field views in a 4" and they are nice and small and tend to fit in typical finder scope brackets.
Just in case you are asking for a 1:1 heads up finder that is a wonderful complement to most optical finder scopes then I would strongly suggest a Telrad for higher mag dim target finds if you are visual and at 1000mm focal length or greater.
The telrad as you may know is a 'beast' and is very large but with it's dual circles of 1 and 2 degree radius it is difficult to beat for accuracy of a find due to it's ease of positioning near field stars a few degrees away. It is remarkably accurate. If you have a transparent overlay for your charts OR a computer sky atlas with telrad sight (most have that) it is great.
For 1000mm and up deep sky work, Telrad wins hands down in my book.
Red Dot Finders
