En Google-bruker
I have had this for a while, but I will ditch it now after I confirmed that the calculation of hyperfocal distance is all wrong. I have not tried the other calculators in the app, but I would not trust them blindly. As an example, let's calculate the hyperfocal distance for a 15 mm lens at f/16 on my Canon T2i/550D, which has a circle of confusion of 0.019 mm. Photo Tools gives me a hyperfocal distance of 91 cm, and a near focus limit of 84 cm. Using the formula for hyperfocal distance (you can find it on Wikipedia and many other places) I can calculate by hand that the hyperfocal distance should be 75.5 cm. Also, the definition of hyperfocal distance says that the near focus limit is equal to half the hyperfocal distance. In our case this is 37.75 cm. So this app is not worth anything in my opinion.
2 personer syntes denne anmeldelsen var nyttig