Yoshihide Yamanaka/Rosseta Nebula
/in User Gallery /by liyunPhotographer: Yoshihide Yamanaka , Japan, Date: 23. Nov 2007,
Astro 400D, Pentax 105SDP 515mm F4.9 , ISO400, 3 x 35min + 2 x 28min, Total 161min exposure.
Photographer’s Home Page: http://blogs.yahoo.co.jp/yottyan_cryyagi
Yoshihide Yamanaka/M78
/in User Gallery /by liyunPhotographer: Yoshihide Yamanaka , Japan, Date: 23. Nov 2007,
Astro 400D, Pentax 105SDP 515mm F4.9 , ISO400, 4 x 40min , Total 160min exposure.
Photographer’s Home Page: http://blogs.yahoo.co.jp/yottyan_cryyagi
Jellyfish Nebula
/in User Gallery /by liyunYoshihide Yamanaka/M31
/in User Gallery /by liyunPhotographer: Yoshihide Yamanaka , Date: 3. Aug 2007, Location: Araragi-kogen Nagano-Pref, Japan, Pentax 105SDP 515mm F4.9 ,
Astro 400D, No noise reduction ISO400, 2 x 30min + 2 x 45min
Photographer’s Comment:
” Why many people use high ISO at cooled-camera.
I think it is better to use under ISO400. I think that less than ISO400 are desirable to get a good work.
………………..In particular Cooled camera. “
David Rigley/Milky Way The nuclear bulge and Galactic Center
/in User Gallery /by liyunPhotographer: David Rigley, http://www.pbase.com/westskyleyburn
Date: 11. Aug 2007, Location: Leyburn Queensland Australia 10 x 3 mins , ISO 1600 ,
Lens Canon 18 to 55mm EFS, Astro 400D ,No Noise Reduction.