Longest (not owned): 500mm + 1.4x on 1.3 crop camera = 910mm
Longest (owned): 300mm 2.8 + 2x + 1.4x on 1.6 crop camera = 1344mm
Widest (owned): Peleng 8mm fisheye on 1.6 crop and full frame film camera
Longest: 24-inch f/18 Cassegrainian reflector (that's ~10,972.8mm f/18) as seen on page 4 of the Rockland Astronomy Club's newsletter, "Distant Light", November 2007...
Nov2007DL.indd - Powered by Google Docs:.
www.rocklandastronomy.com/news/RAC200711.pdf
...but usually the Sigmonster suffices.
Widest: Long forgotten make and model true 180° fisheye for 35mm from way back in my early film days in the '70s. Today, 14mm f/2.8
Dec 10, 2010 at 10:41 PM
Lars Johnsson Offline Upload & Sell: Off
Widest - Sigma 10-20/4-5.6 on 30D, then 12-24/4, then 14/2.8 on 1D II N.
Longest - has to be Minolta 70-210/4 (a hair longer than 70-200 ), but if TCs count, it's 70-200/2.8 L IS USM + 2x TC on 30D and 1D II N
longest,
meade LX200 8" sct with 1dmk2 = 2600mm, then of cause you can you eye piece projection as well for some serious lens!
@2600mm it takes four shots to get the moon in, then stitch together
Longest (Current) Canon 300mm f4 IS L , 2X TC = 600mm
Longest (Past): Canon FD 800mm L, 2X TC = 1600mm on T-90 (film)...my oldest son turned that beast into a robotic (IP server-based) telescope at Eglin AFB, FL.