Orion's Belt and Sword, with Flame and Horsehead nebulae at 300 mm f. l.
© Stephen Pitt
Left: Fuji Provia 100F 300 mm f.l. lens @ f 2.8 cirrus cloud filter, t=15 min
Middle: Kodak Supra 300mm
f.l. lens at f4 t= 60 min.
Right: Fuji Provia
100F +1,.300mm
f.l. lens at f4, t=90,
30,
10, & 3 min exposures
Astronomy Magazine, May 2001
A Closer look
