Kalispera Ari, me apogohtepsh ematha shmera oti to onoma "alati kai piperi" prosfata aporyfthike. http://www.ast.cam.ac.uk/~rgm/scratch/messier/m-names.html M11 legete omos kai "Wild Duck Cluster" giati thymhsei ena smhmos apo agrioxhnes.
Nai, exeis dikio Andrea. Pros to parwn kanw dokimes na dw pws symperiferetai to thleskopio me diafores Kameres. Xtes hmouna katenthousiasmenos apo to apotelesma, ti stigmh pou sto original NEF (RAW) den fainotan sxedon tipota apo thn nefelh. PRIN: http://dark.astrodigital.net/p580472150/e2565900b META: http://dark.astrodigital.net/p580472150/e2243badb Katorthosa me mia texnikh (empneusmenh apo to Tonemapping) na anewasw (stretch) th nefelh xwris na peisaxw ta asteria gyro ths (!!!) kati pou tha mou xreiastei argotera otan tha walo kanonikh CCD sto tileskopio mou kai arxisw na kanw narrowband. Se euxaristw gia ta sxolia, kai na sou zhsei o mikroulhs sth fotografia. Panagiotis
Kalispera kai euxaristw gia tis parathrhseis sas. Eimai pragmatika ekplhktos apo thn apodwsh ths d3100 sto nykterino ourano thn stigmh pou prokeite gia mia poly aplh kai oikonomikh DSLR. Den einai "ftiagmenh" kai etsi blokarei para poly to kokkino fws twn nefelwn. Thn agorasa kuriws gia thn kathimerini xrhsh alla etsi pou ta wlepw ta pragmata arga h grigora mallon tha paw na parw kamia QHY8Pro me filtro IDAS ... To FSQ "fwnasei" gia kati tetio. H odyghsh ontws xefige pros ta pano dexia mallon giati odhgouse to Seeing. Thn eponh fwra tha kanw binning 2x2 mhpws kai ftiaxei. Xwris Autoguiding h JPZ odhgaei pio kala ta prwta pente lepta. Thn kalispera mou kai paly apo thn notia Germania.
Oneiro, oneiro einai Kallia!! Twra auto pou menh na kaneis einai ena "Tone Mapping" ..kai o dromos gia to APOD einai anoiktos! http://astroanarchy.blogspot.com/2009/11/power-of-tone-mapping.html
Basilh akoma mia poly wraia fotografia pou apodykneih oti oi OSC cameres kai sti prokeimenh periptwsh oi DSLR wgazoun arketa kalh apodosh me sxetika liga subframes.