Nikon Series E 100mm f2.8 prism It's a little square about

It's a little square about 9cm across

The Pentax PC-33 is a simple 35mm point-and-shoot with a fixed-focus 30mm lens and

The Pentax IQZoom 700 is a well made point-and-shoot camera with a 35-70mm zoom lens and a couple of unexpected extra features: multiple exposure and Bulb mode for long exposures

Not sure why you clicked here but anyway

this will not interfere with a lens which is not keyed

Nikon Series E 100mm f2.8 prism It's a little square aboutThe Nikon Series E 100mm f2. 8 is from Nikons manual focus budget line, but its a really nice short telephoto regardless. Makes a great portrait lens, with good sharpness and a pleasant character. Its small, too: not much larger than a normal 50mm lens. In very good condition, with some cosmetic wear, light internal dust, slightly uneven focusing action.