Maximilian said:
Lee Jay said:
Anyone want to bet that it won't compete on price with the Sigma 150-600C I just got on a Cyber Monday deal from BuyDig (reputable authorized dealer who got it to me right on time) for $700?
I'd be guessing $3k or so for the Canon. It's basically a 100-400L upscaled by a factor of 1.5 and with the "L" removed.
Hi Lee Jay!
I really hope you'd be true, but I can't believe it.
Did you ever drill down about producing optical elements?
Did you ever recognize that the price goes up with the diameter in square - at least?
The rule of three is linear, price is not. So if the diameter increases from 77 to 115 we'd have at least 1.5 by 2 so 2.25 for the price. Say $4.500 at a minimum.
Your calculations?
$2,300 for 100-400L * 1.5^2 = $5,175. Divide by 1.5-2 for it being a non-L = $2,587.50 - $3,450.
Want another one?
Tamron 150-600/6.3 = $1,050
Sigma 150-600/6.3C = $1,090
Sigma 150-600/6.3S = $2,000
Nikon 200-500/5.6 = $1,400
$1,400 * (600/500)^2 = $2,016
$2,000 * (6.3/5.6)^4 = $3,203