Viewing post #826248 by shadytrake

evermorelawnless said:One thing to remember about the mid-sized sensor-frame cameras is they place the lens farther away from the sensor than traditional DSLRs do from the film. The effective result of that is a 1.5 multiplier to the focal length.

In other words, if you use a 50mm legacy lens, it will behave as if were a 75mm lens on a DSLR. So the 100mm macro lens that I shoot a lot of shots with on the K-3 is acting like a 150mm lens would on my K-1000.

Hope that makes sense. So if you want a regular "nifty fifty" to use as a prime, get a 35mm for that focal length (effectively 52.5mm).

Well, I learn something new every day. I had no idea that the focal length was different on the DSLRs! I did know that the higher ISOs caused what we called "grainy" and is now called "digital noise." I used to shoot Ilford 120 ISO100 and ISO400 film because it was very easy to manipulate.

I want to avoid noise issues especially for closeup photos. I'm thinking the lens you originally suggested is a great starter.