JerryLove
No longer a newbie, moving up!
- Joined
- Jan 1, 2014
- Messages
- 413
- Reaction score
- 50
- Location
- Tampa
- Can others edit my Photos
- Photos OK to edit
70 x 2 x 1.4 = ~200My one concern: I'm planning on getting the Canon 70-200 f/2.8L IS II once I can scrape together the cash.
Assuming I have that lens, adding a 2x and 1.4x teleconverter (which themselves cost only a bit less than the Tamron lens) would make it a ~200-560mm f/5.2.
70 x 2 = 140
200 x 2 = 400
f/2.8 x 2 = f/5.6
a 2x TC would equal exactly a 140-400mm f/5.6 lens.
200 x 2 x 1.4 = 560
f/2.8 + 2f +1f = f/6.8? (so yea, didn't add enough f-stops for stacked teleconverters)