Forgot Password
Pentax Camera Forums Home

Pentax Lens Review Database » Pentax Auto 110 Lenses » Auto 110 Prime Lenses
PENTAX-110 18mm F2.8 Review RSS Feed

PENTAX-110 18mm F2.8

Reviews Views Date of last review
8 35,052 Mon August 28, 2017
Recommended By Average Price Average User Rating
100% of reviewers $24.17 8.88
PENTAX-110 18mm F2.8

PENTAX-110 18mm F2.8
PENTAX-110 18mm F2.8

A wide angle lens for the Pentax Auto 110 system.

Max. aperture: f/2.8
Closest focusing distance: 25cm
Diagonal angle of view: 61.5 degrees
Optics: 6 elements in 6 groups
Filter diameter: 30.5 mm
Size: 34 x 21 mm
Weight: 28 g

Matching close-up lens: W21
Price History:

Add Review of PENTAX-110 18mm F2.8
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 1-8 of 8
Senior Member

Registered: January, 2016
Location: Minnesota
Posts: 116
Lens Review Date: August 28, 2017 I can recommend this lens: Yes | Price: $25.00 | Rating: 10 

Sharpness: 9    Aberrations: 9    Bokeh: 8    Handling: 9    Value: 10   

Used on a Q7.

Very nice little lens, capable of quality images. I usually use with a rubber washer in the adapter to give a f4.5 aperture, although it is also nice wide open. Use a hood. Gives images a different 'look' than modern optics:

Click through for enlarged image and exif data.
New Member

Registered: May, 2013
Posts: 1
Lens Review Date: April 3, 2017 I can recommend this lens: Yes | Price: $40.00 | Rating: 8 

Pros: Very compact, nice bokeh and unique colours
Cons: Very soft on edges
Sharpness: 7    Aberrations: 6    Bokeh: 9    Handling: 10    Value: 10   

Bought this lens out of curiosity, I've been using it on my NEX 5n with an m43 adapter with aperture lever and a m43 to NEX adapter. Having the lever is really useful.
I love it's unique color rendering and it's distorted bokeh, it really is great for portraits. I use it from time to time.
Now I even use it on my Sony A7 (!!) which is usually a weird combination but brings amazing results! Following samples were taken with NEX 5n though
Senior Member

Registered: August, 2012
Posts: 118
Lens Review Date: August 25, 2015 I can recommend this lens: Yes | Price: $5.00 | Rating: 8 

Pros: IQ, price, size
Sharpness: 7    Aberrations: 9    Bokeh: 9    Handling: 9    Value: 10   

I picked up a couple of these little beauties, one was significantly sharper than the other.

Nice 85mm FOV on the Q7, OK sharpness stopped down to f4.5 (with washer-see threads in Q section) flattering portrait lens wide open.

A good balance of sharpness, contrast and minimal CA.

Generic adapter should be shimmed (I used thin packaging tape) when using these lenses to attain infinity focus.
New Member

Registered: October, 2012
Posts: 1

1 user found this helpful
Lens Review Date: October 1, 2012 I can recommend this lens: Yes | Price: N/A | Rating: 10 

Pros: Image quality, bokeh, speed,
Sharpness: 10    Aberrations: 10    Bokeh: 8    Handling: 10    Value: 10   

Many of my favorite Auto 110 Pentax pictures are posted at I have 14 digital cameras and many lenses, and the combination of NEX-5 and 18mm Pentax 110 is a great package. It makes for a light camera. I shoot it at the fixed f2.8 usually 1/4000 on a sunny day. It is a good close up lens.
Giveaway winner!

Registered: December, 2007
Location: beantown
Posts: 940

1 user found this helpful
Lens Review Date: June 27, 2012 I can recommend this lens: Yes | Price: N/A | Rating: 9 

Pros: Simple and sharp
Cons: smaller than other lenses, built inhood would be nice
Sharpness: 9    Aberrations: 9    Bokeh: 7    Handling: 8    Value: 9   

On film I will point out.
Kodak or Fuji. The lens has delivered very good images. Recently I've purchased the Lomography 110 b&w film and it is very good. So far is that this lens does will to put image to emulsion and the flare and contrast quality is very big lens in performance. No surprises in any way and I'll let you know if I cut Ektar down to 16mm how it all works out.

Registered: February, 2009
Location: Edmonton
Posts: 308

1 user found this helpful
Lens Review Date: April 16, 2012 I can recommend this lens: Yes | Price: $25.00 | Rating: 9 

Pros: Sharp lens in direct lighting. "Dreamy" flare in side-lit situation.
Cons: Sometimes a little too dreamy...
Sharpness: 8    Aberrations: 7    Bokeh: 10    Handling: 10    Value: 9   

Picked up this lens to use on the Pentax Q with an adapter, since the Pentax-110 24mm was not a good companion.

It is a very interesting lens in use, for pixel level sharpness I would say it is very good, however many images exhibit a certain dreamy softness which is very appealing when using this as a portrait lens (100mm equivalent on Q). I find this "dreamy" look happens most often in side-lit situations, so it is simply a veiling flare, but I've never seen veiling flare look this nice.
If you're not into the dreamy veiling flare: fashion a lens hood out of something, and this would be a very competent lens in any lighting.

Here's one shot demonstrating sharpness, another the nice out-of-focus highlights this lens delivers. In the future I'll add a shot of two demonstrating the dreamy qualities.

Senior Member

Registered: September, 2011
Location: Lodz
Posts: 232
Lens Review Date: February 27, 2012 I can recommend this lens: Yes | Price: $15.00 | Rating: 8 

Pros: Sharpness, vintage-looking pictures, small weight&size
Cons: Constant aperture (f/2.8) on mirrorless cameras
Sharpness: 9    Aberrations: 6    Bokeh: 6    Handling: 7    Value: 9   

A very nice, small lens with great sharpness and, what's more important, giving a nice vintage look to pictures made with my Nex-5N (strong vignetting may be one of the reasons...). Of course one cannot change the aperture, but it doesn't have to be a bad thing, as it makes you think before taking a picture. And for objects located a bit further the DOF is deep enough.
Nice distortion control for such a small and old lens, bokeh is acceptable (good for a wide lens), it's sharp wide open and very nice to handle.
I bought it in a set of a camera, flash and two other lenses (24mm f/2.8 and 50mm f/2.8) for ca. 60 USD and don;t regret a penny spent! :-)
New Member

Registered: October, 2009
Location: Irvine CA
Posts: 2

1 user found this helpful
Lens Review Date: January 11, 2011 I can recommend this lens: Yes | Price: $35.00 | Rating: 9 

Pros: Very good to Excellent optically and bright
Cons: Fixed f/2.8 no iris

Practically this lens is about equivalent to 28mm/35mm film on Sony NEX-5.
Compare with Sony SEL1855 this lens shows cleaner image in the room light. Because Sony Zoom can go f/4.0 max, but it goes f/2.8.
It is such a small lens that one can not resist to carry it.
Add Review of PENTAX-110 18mm F2.8

All times are GMT -7. The time now is 10:04 PM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]