01-24-2014, 11:27 AM
And your logic skills are simply... Well, to be expected from Brightcolours
Klaus talks about a 500mm lens and is saying on APS C it's 800 ( equivalence would be 1.62 times, but that's not the point) and is saying he was doing longer tests than the 600mm Tamron in the past. So, with an APS C sensor the crop factor is valid for Tamron 200-500, but not for Tamron 150-600? Now, who has a math problem?
To be correct, one needs to multiply 600 * 1.62 as well if the test camera is again an APS C. It is not correct comparing a 500mm lens with a 600mm and say, because it's a crop sensor behind the lens, now you have an 800mm lens, that's plain bullshit.
500mm is not and never the same as 600mm, that's where all your and Klaus' equivalencing fools you.
But is it worth to make an argument about that really simple math? Problems with those focal lengths have much more to do with photog skills, tripod quality or quality of VR ( or whatever the marketing word of Tamron is for vibration reduction), atmospherical pollution or simply weather conditions. Or the question, if the normal factor of distance between target and lens should be 50 times the focal length
One hardly has always the weather conditions to shoot in 30m distance without any dust, mist or insects in between.
Klaus talks about a 500mm lens and is saying on APS C it's 800 ( equivalence would be 1.62 times, but that's not the point) and is saying he was doing longer tests than the 600mm Tamron in the past. So, with an APS C sensor the crop factor is valid for Tamron 200-500, but not for Tamron 150-600? Now, who has a math problem?
To be correct, one needs to multiply 600 * 1.62 as well if the test camera is again an APS C. It is not correct comparing a 500mm lens with a 600mm and say, because it's a crop sensor behind the lens, now you have an 800mm lens, that's plain bullshit.
500mm is not and never the same as 600mm, that's where all your and Klaus' equivalencing fools you.
But is it worth to make an argument about that really simple math? Problems with those focal lengths have much more to do with photog skills, tripod quality or quality of VR ( or whatever the marketing word of Tamron is for vibration reduction), atmospherical pollution or simply weather conditions. Or the question, if the normal factor of distance between target and lens should be 50 times the focal length
One hardly has always the weather conditions to shoot in 30m distance without any dust, mist or insects in between.