cyph1r

hi people

i need your help

so im getting into wildlife photography

and i need to get a lens (preferably for as cheap as possible)

BUT idk what im looking for

"Wildlife" and "cheap" usually don't go together, unfortunately :(

For knowing what lenses work with your camera, I found this neat list. Generally it seems most pentax lenses fit on most pentax cameras.

Then theres focal length, for bird photography most people say 400mm and up, but you can get by with 300. Theres two kinds of lenses, zoom and prime. Zoom lenses are what the name suggests, they let you zoom between set focal lengths (eg 100-400mm). Prime lenses stay at one focal lenth, which means you have to "zoom with your feet". Prime lenses are generally sharper than zoom lenses.

Theres also f-stop or aperture (eg f/5.6-8). The smaller the number, the wider the aperture, the more light gets let in. In practice this means a narrow deoth of field and better low light capabilities. The number indicates the widest the lenses aperture can go) Zoom lenses can either have a variable aperture (eg 100-400 f/5.6-8), this means the aperture is wider when you're zoomed out (5.6 at 100mm) and gets narrower the more you zoom (8 at 400mm), or a set aperture (eg 70-200mm f/2.8), this means the widest aperture is 2.8 at all focal lengths.