*This chart is keeping the Canon brand in mind for TTL.                      *Guide Numbers are based on the telephoto end of flash and 100 ISO. © Bart Zieba 
Bart Zieba Photography
www.bartziebaphotography.com  
This is a compilation of different flashes from big brands and third party manufacturers. Hope it helps you choose a flash for your camera and/or strobist system. This was put together because I hoped that it would answer many beginner questions. If you see a correction or want a flash added feel free to send me the info but please also send the source for verification. 
Contact: info@bartziebaphotography.com
Name Guide Number PC Connection Angle of Coverage Variable Power (Manual)  TTL Bounce / Swivel Other Notes
Achiever Z940AF 132' / 30m   28-85mm 1/1 - 1/8 e-ttl II Both  
Bower SFD35C 112' / 34m No 28-85mm None e-ttl II Both $5 more gets you a bit more power
Bower SFD728C 92' / 28m No 28-85mm None e-ttl II Both  
Canon 277T 82' / 25m No 28mm No Manual - Has Fstops in program mode (f2-f22) Manual None Has a wide angle adapter (1984)
Canon 299T 98' / 30m No 20mm, 35mm, 85mm 1/1 Manual, 1/16 Manual (fill flash) Manual Both  
Canon 380ex 125' / 38m   24-105mm   Ettl Bounce  
Canon 430ex 141' / 43m   14-105mm 1/1 - 1/128 e-ttl II Both 40% Faster over 420ex
Canon 430ex II 141' / 43m   14-105mm 1/1 - 1/64 (1/3 increments) e-ttl II Both 20% faster, reads type of sensor
Canon 540ez  177' / 54m   20-105mm 1/1 - 1/128 Manual Both  Strobopcopic
Canon 550ex 180' / 55m   17-105mm 1/1 - 1/128 Ettl TTL Both  
Canon 580ex  190' / 58m   14-105mm 1/1 - 1/128 e-ttl II Both Stroboscopic 1-199hz
Canon 580ex II  190' / 58m Yes 14-105mm 1/1 - 1/128  (1/3 increments) e-ttl II both Stroboscopic
Metz TTL 48AF 158' / 48m No 18-105mm 1/1 - 1/128 e-ttl II Both  
Metz TTL 58AF 192' / 58m No 18-105mm 1/1 - 1/256     (25 Levels) e-ttl II Both  
Nikon SB24  160' / 49m   24-85mm 1/1 - 1/16  Manual Both  
Nikon SB25  118' / 36m Yes 20-85mm 1/1 - 1/64  (1/3 increments) Manual Both  
Nikon SB26  118 / 36m   18-85mm 1/1 - 1/64  (1/3 increments) Manual Both  
Nikon SB27 112' / 34m   24-70mm 1/1 - 1/16 Manual Both off center flash
Nikon SB28 164' /50m   18-85mm 1/1 - 1/64  (1/3 increments) Manual Both  
Nikon SB28DX 164' /50m   18-85mm 1/1 - 1/64  (1/3 increments) Manual Both  
Nikon SB50DX 85' / 26m   14-50mm  None Manual Bounce  
Nikon SB600 98' / 30m   14-85mm 1/1 - 1/64 Manual Both  
Nikon SB800 184' / 56m   17-105mm 1/1 - 1/128 Manual Both  
Nikon SB80DX 184' / 56m   14-105mm 1/1 - 1/128 Manual Both  
Nikon SB900  131' / 40m Yes N type 17-200mm 1/1 - 1/128 Manual Both Detects sensor size, gets software updates
Nissin Di 622 144' / 44m No 20-105mm 1/1 - 1/32 e-ttl II Both  
Opteka EF600 148' / 45m   15-85mm 1/1 - 1/128 Ettl Both Stroboscopic 1-199hz
Phoenix 112 112' / 34m No 28-85mm None e-ttl II Both  
Phoenix 99c 99' / 30m No 18-55mm No Manual e-ttl II Bounce  
Ricoh 300p 98' / 30m   24mm manual with EV settings Wireless Bounce  
Sigma EF500 165' / 50m No 17-105mm 1/1 - 1/128 e-ttl II Both  
Sigma EF530 174' / 53m No 17-105mm 1/1 - 1/128 e-ttl II Both  
Sunpak 035M 86' / 26m   35-85mm        
Sunpak 266D TTL 92' / 28m   35-135mm None Ettl Bounce  
Sunpak 383 Super 120 / 36m Yes -sunpak type 35mm 1/1 - 1/16 Manual Both  
Sunpak 433AF 120' / 36m No 35mm No Manual Manual Both  
Sunpak PF30X 98' / 30m   20mm   e-ttl II Bounce  
Sunpak PZ4000 132' / 40m No 28-80mm  1/1 & 1/16 TTL Bounce  
Sunpak PZ40X 133' / 40m   24-80mm 1/1 - 1/16 e-ttl II Bounce  
Sunpak PZ42x 138' / 42m   24-105mm 1/1 - 1/64 e-ttl II Both  
Vivitar 285HV 120' / 37m Yes 28mm, 35mm, 50mm, 105mm 1/2, 1/4, 1/16 Manual Bounce  
Vivitar 340Z  112' / 34m No 28-85mm None e-ttl II Both  
Vivitar DF400MZ 131' / 40m No 24-85mm 1/1 - 1/16 e-ttl II Both