Biggest field of view in smallest sized lens and camera. It's a hoot.
M. Seither "The glider", Amazon
30 June 2014
Summary: Great little lens. Delivers biggest scope in smallest package out there. Be aware most useful infinity is achieved a notch or two prior to the last tab on the lens. I leave it there most of the time.
Excerpt: This lens is more fun than barrel of monkeys. Manual focus allows the user to set their own focal point. Focus close for blurred background, focus far for great depth of field. I love this lens, no Q kit is complete without one. I use this lens on my Q7 and my Q10 quite often.
This 03 fisheye lens expands the fun factor and usefulness of the Pentax Q into aerial pole photography
5 January 2014
Summary: This is one of the least expensive fish eye lenses available and yet makes the Pentax Q truly versatile and fun! It's pretty basic, fixed aperture at 5.6, simple un-dampened focus ring, plastic mount and construction. At first I was disappointed with results from the 03 lens, the images looked soft and with lacked contrast. Then after some experimenting I came up with the following settings to maximize image quality: - Keep ISO below 400, and below 250 whenever possible.
Summary: i have never used a fisheye but this is a fun little lens...wish i could autoficus but knew that before i bought it...the infinity on the focus is off so don't plan on focusing for long distance and just leaving it wide open..none of these issues i see as negatives..price is good and it's a nice little lens..
Great little lens for the price. Use focus-peaking and you'll be set.
F. Gonzalez, Amazon
8 July 2013
Summary: I've found that this is a pretty good little lens if you turn on the focus-peaking feature. I'll let other reviewers go into the technical details, but in my few weeks with this little lens I find that it takes great ultra-wide images and is pretty easy to focus. Just as with most fish-eye lenses, though, you gotta be careful not to scratch the front lens element. I'm loving my little Pentax Q -- it's so easy to travel with!
Summary: I love the petite size and effect it gives off. It's light but strangely durable enough to withstand it rubbing against my chest as it swayed while I walked. Definitely a good must have fun lens for Q owners.
Summary: I bought this with some trepidation -- I'm not a giant fan of the whole toy lens thing -- and really have been shocked at the quality. To give you a point of reference, my favorite 35mm lens is still the spectacular Pentax 135 1.8 ED; these days it lives on my K20d. On the Q, I have the 01 Prime, 02 short zoom and 06 long zoom, along with the 03 Fisheye. The latter, while slow, is sharp and glorious. And addictive.