Would someone be so kind as to explain the scale. I have tried several sites, and all I end up with is . Or head me in the right direction to a site that is not so technical. I know it has to do with the lens, and maybe the sensor on my D90 and the type of lens that I may be using at the time. Oh ya and the Aperture, and distance. I have printed out a copy of several focal lengths based on my D90 which I found on a site.
Distance- Near----- Far---- Focal Length 18mm---- F1.4
1 foot--- 0'11.7"--- 1'0.3"
2 feet--- 1'10.8"--- 2'1.3"
3 feet--- 2'9.4"---- 3'3.1"
Now is the information based with just the lens and no filter? If so what happens when you use a neutral density filter or a polarized filter. Do you step down the info to a 2.8?
I realize this may be asking alot of someone, but I would really appreciate it.
Thanks
Michael.
Distance- Near----- Far---- Focal Length 18mm---- F1.4
1 foot--- 0'11.7"--- 1'0.3"
2 feet--- 1'10.8"--- 2'1.3"
3 feet--- 2'9.4"---- 3'3.1"
Now is the information based with just the lens and no filter? If so what happens when you use a neutral density filter or a polarized filter. Do you step down the info to a 2.8?
I realize this may be asking alot of someone, but I would really appreciate it.
Thanks
Michael.
Last edited: