Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

Will work on 16mm cameras, like the Bolex, although less than ideal focus throw compared to Switars. Nice-priced and sharp lens for the last few of us shooting 16mm film. Original lenses have been priced out of reach by silly wanna-be's trying to buy their way out of the creative abyss that is digital photography.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

The widest I have tested this lens is at f4.0 and there is not a lot of edge sharpness there. It is a fun lens on M43 but I'm going to go for the 20mm 1.7 for IQ and ease of use.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use this lens with my Panny GH2. First off the lens is absolutely adorable. It's so small and looks nearly out of place mounted on the GH2. You get about 98% coverage of the sensor. Slight fringing on the edges. Other than that the lens is quite sharp, even wide open. The focus and aperture rings are buttery smooth. It's my go-to lens for now. You can't beat it at its price range.

The only downside is it has an awkward filter thread size. Lens cap says 29mm. Can't find filters at that size.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I love this lens.... its just so small, fits great with an adapter on my gf1, looks awesome, and is very good price for the quality, but best of all, it fully covers the whole sensor on my gf1! its just an awesome little lens! Give it up to B&H for making this available!... Thanks!

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use this lens on my Lumix GH1 and love the sharpness. It does vignette a bit in the corners but I kind of like this look. I want to get a thinner adapter since the one I use is a bit close to the focusing ring but still works great.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

This is a very good lens if you consider the super bright aperture and low price. It will give you some dark corner (not a lot, depending on the distance of focus and aperture.) The center is super sharp, which is quite surprising. To the corner the IQ goes down and it is quite blur at corner. Which is not a big deal if you put your main object in the center, and in fact sometimes helps your main object to pop out.

Mannual focus is not hard at all. This is my first mannual lens and it is very easy to go with. If you want to try muannual or need very shallow DOV of want some bright lens for night/indoor, this is a very good choice.

Do not forget the price. It is sure far from perfect but totally worth the price.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

This is a really tiny and fun lens to use. Very bright/fast in low light at f1.4 and nice sharp image in the center of the frame. It has a unique look to it with a swirley bokeh and minor vignetting if this was adapted to a Micro 4/3 camera like my Panasonic GH2, or to Sony NEX systems. Just get a cheap c mount adapter and you'll be able to use many other fast and cheap c mount lenses. Technically, the lens is not ideal, however, this lens has a pleasant and amazing artistic look to it's image output.

Don't let the "Assembled in Vietnam" label sway you away from this tiny and powerful lens. Pentax did an excellent job in building a small but solid piece of glass. For the price, you cannot not beat this lens value for how fast and lightweight it is. Start investing more into cheap and quality c mount lenses and you will not regret it!

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I have this lens on my Sony NEX 3 (with adapter) and it is a blast to shoot with. Vignettes heavily in the corners but I bought it for that purpose. It is amazingly crisp in the center and has interesting bokeh. I'd definitely recommend this lens for getting creative.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use this lens on my M4/3 camera body with an adapter, so my review is directed toward that application. The Pentax lens works better than expected. True enough, there is some vignetting in the corners, though fairly minor when shooting in 3:2 aspect ratio (which is what I mostly shoot at with this lens mounted). The vignetting is functionally a non-issue if shooting wide-screen HD video, but I'd be lying if I said it wasn't there.

The lens is great as a low light normal with varied uses. Wide open, it can be used as an effects lens to evoke a "toy camera" kind of look. Stopping down to f/2, it sharpens up noticeably, but still gives your photos and interesting feel. Stopped down to 4 or 5.6 and it's fairly sharp through most of the frame, though you'll still notice some peripheral defocus, especially toward the corners. At these middle f/stops, it's capable of resolving detail to a surprisingly satisfactory degree. Of course, it doesn't resolve quite as much at the pixel level as an actual made for M4/3 lens or an adapted M-mount lens, but it's good for everyday shooting, general street photography, or low-light endeavors.

For my money, where the lens is especially good is in shooting HD video, this if you're looking for a manageable manual focus lens to pull or throw focus. This is at least half of what I was hoping for when I purchased this lens.

Watch out for the tiny screws. They're easy to lose. I'd recommend taking them out. For special use, you can keep on hand one of the larger thumb screws (these come with the lens) for shooting video and desiring to pull or throw focus.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

This lens is a blast to use on a MFT camera. It works great in low light and is especially a bargain at [$]. [...]. I recommend the Fotodiox adapter for use with MFT cameras. I had to remove a little silver screw in the adapter to allow it to fit and since then it's great.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I recently shot a documentary using the GH1 and this lens with a c mount adapter. One of the best lenses I have in my bag. It's small and takes some getting used to, but the results have been incredible. Buy this lens and see the world with a different eye.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use the lens on my M4/3 mirrorless DC
with a C-mount for conversion.
The effect is very good and the photo quality is
even better than my expectation!!
It's a funny way of using a CCTV lens~

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

Versatile! I have tried it on all of the cameras that we use in our research laboratory. Excellent piece of equipment and good value for your money.Optimized for a 1-inch chip camera and can be "too much" for the 1/4" chip cameras.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I bought this lens to use with the olympus EP-1. Works perfect (with an adapter).

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

Likes:
Small, Light weight, good built even though it's small
Slight Vignet - i use on micro 43 Olympus camera with an adaptor, as the lens does not cover the full sensor, so there's a slight vignet which gives a "pinhole" effect which I like it at times.
Dislike:
Not much to dislike about except that the warranty is not international as I'm not local.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use this lens on Olympus E-P1 as a low light lens to shoot in clubs or in streets at night. The lens performs exceptionally well wide open, and closing it a bit allows to flexibly control the DOF. I am an old-fashioned amateur photographer and prefer manual focus. I'd love to have click stops in the aperture ring, but this is not a big issue.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

Nice lens albeit tiny. No focus for video, great for stills as a cheap micro 4/3 lens. I would give it four stars if it had a focus ring. All in all, this is a nice toy to play with. I would love to see it work on a HOLGA!

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use it with a Panasonic Lumix GH1 camera (pictures and movies) with a specific adapter (bought on the Bay).
It's a very tiny and sharp lens, very fast (f1.4!) with hard few vignetting.
I think I will buy the 50mm as soon it will be in stock.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

We use this lens in our machine vision product. Good quality to price ratio. If your application is space limited, note that this lens is a bit long. We've had to change the length of our extension tube to accommodate it...not a deal breaker for us...just be aware of it.

Comments about Pentax C22525KP 1" C Mount 25mm f/1.4 Manual Iris Lens:

I use this lens with a micro four thirds camera with a "C" mount to m43 adapter. It has slight vignetting with all aspect ratios, some more than others. The image quality is pretty good except for the extreme edges where it gets noticeably soft. Requires manual focusing and aperture adjustment. But it's a fun lens for those who like to experiment with less than perfect lens quality and who would like to simulate a Holga type effect with their digital camera. The bonus being this is also an f1.4 lens , good for low light shooting and narrow depth of field effects.