Hi I am wanting to try use,ing a Celestron c80ed apo with my Olympus e-m5 and e-m1 bodies to take bird photo,s around our island as the distance is usually to great for my 300 Panasonic and the Olympus 3/4 lenses are still two ex pensive So is any one use,ing this scope for birding and is it any good? before i buy it rather than find out after Thanks for any help Regards Peter