| | Sharpness | | Aberrations | | Bokeh | | Handling | | Value | |
| Reviews | Views | Date of last review | 4 | 14,187 | Thu December 7, 2023 | | | Recommended By | Average Price | Average User Rating | 100% of reviewers | $11.75 | 7.50 | | | | supersize | | |
Author: | | New Member Registered: June, 2017 Posts: 15 | Review Date: December 7, 2023 | Recommended | Price: $7.00
| Rating: 8 |
Pros: | small, well finished, mechanically smooth, inexpensive | Cons: | Classic basic 28mm issues | Sharpness: 8
Aberrations: 8
Bokeh: 6
Handling: 10
Value: 10
Camera Used: P30 and Micro 4/3
| | I got a PK mount version in 2023 for £5GBP (about $7 USD). It is in mint condition, and has smooth focus with a good DoF scale and comes with a matching screw in plastic lens hood and a zip-close semi-rigid case.
Multiple sources say this was made by Osawa - and I agree.
As with all the basic F2.8 wide-angles of the era it has the same issues: - it was designed to shoot colour prints in the 6x4 to 10x8 range and 35mm slides for amateurs and in that role it is perfect - but on digital cameras examined at pixel level it will show the following
- softer egdes at F2.8 - great by F5.6
- a couple of pixels of CA at the corners
- not the greatest close focus
- all this is hard to fix without extra floating/aspheric/high-density glass elements in the design, which is why it is a common shared issue with "standard design" affordable wideangles from the 1980s
- 6-bladed aperture giving sunstars when provoked
- A great amount of inter lens variation in interpretation of IQ-
- in my experience this is down mostly to haze on the lens elements - especially the smallest rear element closest to the film or sensor (so any dirt, haze etc here magnifies its impact on thr picture IQ)
- Simply unscrewing that one part of the lens and cleaning it with ethanol fixes most issues.
- thin layers of haze are hard to spot so I just do this as a matter of course now as the problem seems ubiquitous - all those aperture ring mechanisms spraying grease as they worked are usually situated just infront of the last lens element group.
The lens surface is coated with a green tint and controls flare well with nice colours.
My version isn't far off an SMC 28mm F2.8 or Vivitar 28mm F2.8 in weight, size and performance ... for a fraction of the cost. It is just behind the Pentax SMC 28mm F3.5 model, which I rate to be the best in class for landscapes.
On Micro 4/3 it makes a nice small size "standard lens" (56mm FF Eq) and benefits from a 49mm "telephoto" lens hood to cut veiling flare - but lacks the closer focus seen with most M4/3 kit lenses although often gives a much nicer rendering at F2.8 for portraits.
No one is making these sort of prime lenses at affordable prices anymore in 2023 save for Meike with some APS/M43 designs of 25mm and 28mm and 35mm lenses - but those lack stop-down apertures and clicked aperture rings.
So like many users of this database seem to be doing, I have been steadily building a good collection of similar "vintage" 28 and 50 and 135mm prime lenses (and several of the underrated P30 bodies with those bright pentaprism finders) to see me through to the eventual disappearance of film ! Over time this can be done at the cost of less than a pizza each even today - just don't be afraid to turn down or return the duds that inevitably turn up.
Yes, some go on over time to develop sticky apertures or another fault, as they are now 20-40 years old, but as long as I have a couple of good IQ "spares" in stock for each of my favoutite lens sizes I can just carry on and get lots of 49-52mm step rings to maintain compatability in my camera bag. Eventually however, this supply will be reconized as finite and fewer will be advertised and prices will climb - so thanks for all the contributors for helping us all to weed out any "lemons" in the back catalogues !!
| | | | | Senior Member Registered: August, 2009 Location: Broomfield, Colorado Posts: 152 | Review Date: January 12, 2018 | Recommended | Price: $10.00
| Rating: 8 |
Pros: | PK mount, solid build, smooth focus, useful DOF scale | Cons: | prefer A-mount for DSLR | Sharpness: 8
Aberrations: 8
Bokeh: 7
Handling: 9
Value: 9
Camera Used: K5 II
| | Bell & Howell 28mm F/2.8 Wide Angle Lens
Made in Japan
Mount: PK version
Focus ring: 180 degrees rotational throw, moderately firm and smooth
Aperture ring: 1/2 stop detent "clicks" except full stops at F2.8 and F22
Lens Hood: black threaded (49mm) hard plastic hood, no labeling
Lens has a nice solid, well built feel not unlike Pentax M-series lenses, while this lens has a more shiny looking chrome finish for the base mount region!
Photos of the lens with cap and hood are shown below.
Example landscape moderate closeup, f/5.6
B&W Winter Waves of Texture | | | | Site Supporter Registered: May, 2015 Location: Hampshire Posts: 892 | Review Date: July 15, 2016 | Recommended | Price: $10.00
| Rating: 7 |
Pros: | Cheap, build quality seems robust | Cons: | Not as sharp as I would like | Sharpness: 7
Aberrations: 8
Bokeh: 7
Handling: 7
Value: 8
Camera Used: K-5
| | I bought this lens at auction. It has the M42 mount and a stop down A/M facility so it is easy to use in AV.
It came with a little brochure so I will add some details;
Model 280B
Construction 7-7
Max dia 61mm
Overall length 51.5mm
Weight 240 gms
The back of the brochure has;
J.OSAWA & CO.LTD TOKYO
So it looks like this might be lens made by Osawa, it's labelled made in Japan. Osawa has a similar 28mm F2.8 in the misc. lens list on the forum. There seems to be evidence that Bell & Howell was a brand name owned by Osawa in other threads on some older Pentax forum Q's & A's.
I have yet to be wowed by any of the 28mm lenses I have bought. The one that might have been my favourite was the PETRI 28mm F2 but it had a lot of glow around any white in an image at wider apertures. It was probably my sharpest 28mm at smaller apertures.
I sold this Petri as well as my -A 28mm F2.8, my -M (2nd version) 28mm F2.8 and an old Tamron Adaptall (I forget which one but it was 28mm F2.8) as I was not very impressed with the images they provided when using the lenses at the indicated Hyperfocal distances to enable focus to infinity at F8 or F11 when walking around.
I do wonder if these markings are not too accurate sometimes but things that should be well within focus do not appear to be any sharper than the 18-55mm kit lens. Closer up things are a quite a lot better regarding sharpness.
This Bell & Howell is no better than the lenses I have sold on. Perhaps not quite as good and like the Petri has some glow at wider apertures. So it will go sometime too.
But I do recommend it if you get it at the price I did.
If you have to have a 28mm F2.8 manual lens, check out some 3rd party ones too, (Vivitar can be as good as Pentax I believe!) and can be found relatively cheap so not too much of a waste if you don't like them
I have kept my close focus Komine made Vivitar 28mm F2.8 as it has a -A mount, is no worse for distant images than the Pentax-A but is closer focussing and also my Sigma wide angle 28mm F2.8.
I have also kept my 1st version Pentax-M 28mm F2.8 for reasons that escape me.
I have trouble appreciating a fixed length 28mm lens, it's probably just me, maybe they require some post processing to bring out their images better.
| | | | New Member Registered: March, 2016 Posts: 11 | Review Date: April 20, 2016 | Recommended | Price: $20.00
| Rating: 7 |
Pros: | Cheap, infinity focus starts from 4m | Cons: | Loss of contrast when shooting against a light source | Sharpness: 7
Aberrations: 7
Bokeh: 7
Handling: 8
Value: 9
Camera Used: Pentax K-x, Sony a5000
| | So this is the lens I'm talking about
Surprisingly there seems to be almost no information available in the internet about this lens . I was looking for a 28mm prime, fount this in ebay and decided to give it a try reglardless of quite lacking information bout this lens.
Size wise it's the same size as Pentax-A 50mm f1.7 and is slightly heavier. Focus distance is from 0.3m and infinity starts at 4m. Wide open it's relatively soft. When stopped down it ofcource improves but at that point one would have to question the wisdom of going for that kind of prime lens over the kit zooms which almost always cover this focal distance and are only 1 stop darker normally at 28mm.
I would say it is marginally sharper than three zooms I have which cover that focal range, however, the Pentax 18-55mm kit zoom is pretty close so unless one already has this lens it might not be worth it.
So some comparison shots I did (zoomed in crops for pixel peeping).
Against the kit zoom at 28mm
Against the pentax 28 - 90mm zoom (which is the worst lens I own in my opinion)
And against Tamron 28-200mm zoom at 28mm.
I'll add that if the conditions are right it can produce decent images. One should just avoid shooting against the light sources as the loss of contrast can be then dramatic. Not always but sometimes.
Wide open at f2.8
Stopped down to .. mm f5.6? If I remeber correct.
A cat under good light conditions
And some plants | | |