Hi Folks
I just recently picked up a Canon 500mm F4 MKI, i bought it used from a good friend of mine who takes very good care of his equipment. I know that i have a learning curve ahead of me with this lens, i have been shooting for about 8yrs now so not new but still always willing to learn. So here is my problem i have used the 500mm on both of my cameras 6D&7D on tripod or rested on a car window so pretty stable platforms, the 500 is quick but it leaves me baffled as to why the focus indicator in camera says it is focused and i take a series of pics only to find out that they are all soft with no detail Mushy if i can say that with single point focus or any combination of focus modes and drive speeds,of a stationary object i.e:Sled Dogs lying down etc etc,nothing super fast or fast movements at all most photos are taken at 1/1250 or above F8 down to F4 low iso, ETTR and all pics are Mushy but than can go out the next day and be spot on 8 out of 10x so i am asking if it is maybe Due to Contrast levels atmospheric levels, etc etc my Tripod is a Manfrotto 055XB Pro and a Manfrotto 804 head but i have a JoBu Gimbal on the way
. Remember we live in the Arctic so we have a lot of White here right now just to keep that in mind. See attached photos they are cropped a lot just so that you can see what i am talking about pic number 2 is sharpish and taken on a different day when the focus seemed to work.
Thanks
I just recently picked up a Canon 500mm F4 MKI, i bought it used from a good friend of mine who takes very good care of his equipment. I know that i have a learning curve ahead of me with this lens, i have been shooting for about 8yrs now so not new but still always willing to learn. So here is my problem i have used the 500mm on both of my cameras 6D&7D on tripod or rested on a car window so pretty stable platforms, the 500 is quick but it leaves me baffled as to why the focus indicator in camera says it is focused and i take a series of pics only to find out that they are all soft with no detail Mushy if i can say that with single point focus or any combination of focus modes and drive speeds,of a stationary object i.e:Sled Dogs lying down etc etc,nothing super fast or fast movements at all most photos are taken at 1/1250 or above F8 down to F4 low iso, ETTR and all pics are Mushy but than can go out the next day and be spot on 8 out of 10x so i am asking if it is maybe Due to Contrast levels atmospheric levels, etc etc my Tripod is a Manfrotto 055XB Pro and a Manfrotto 804 head but i have a JoBu Gimbal on the way
. Remember we live in the Arctic so we have a lot of White here right now just to keep that in mind. See attached photos they are cropped a lot just so that you can see what i am talking about pic number 2 is sharpish and taken on a different day when the focus seemed to work.Thanks
in the house so not optimal as it is not big enough for the 50 x focal length but from what I have done it seems to be spot on at 0 on both cameras. But you may be onto something with the ambient temperatures of the lens but even when I am out for awhile taking photos of the moon on 10 sec timer tripod and remote release with the mirror lock up on the moon is just absolutely nothing in focus I will post photos later when home.
