Left: 3rd party adapter
Right: Genuine Pentax M42 to K Adapter Left: 3rd party adapter
Right: Genuine Pentax M42 to K Adapter  The Genuine adapter has less wording in the engraving. It is the right one on the above two pictures with engraving for "Asahie Pentax" on top and "Japan" on bottom. The 3rd party adapters such as those from Kalt and Bower share the same mechanical build as the genuine adapters but they are bought with a tool for dismounting the adapter
Dismounting tool from 3rd party adapter
 Bower adapter on bottom with "Bower" engraving on top
In general, I recommend others to get the genuine adapter as the best adapter to use with M42 on Pentax latest dSLR. It is easy to use and dismounting can be done without the use of additional tool. With practice, I find myself frequently remove the adapter with thumb and index finger holding on the two holes in the K mount and dismount the clip with inward direction followed by a anti-clockwise turn of the adapter to unmount the adapter.
Genuine adapter:
- The easiest to use, especially in dismounting
- No need for dismount tool
- Well built in mechanics
- More costly like $30 to $40 dollars
- Difficult to find
- New one comes in a green pouch
For 3rd party adapters such as those from Kalt and Bower, I ran into spring plate getting stuck in my K100D body creating panic moments to unmount the adapter.
3rd Party adapter:
- Cheaper in cost from $10 to $20
- Share the same mechanics but require removal tool
- Quite difficult to dismount with the given tool
- Lots of panic moments in dismounting from various users
- Spring plate easy to get worn out with the adapter stuck in K mounted body
I end up using both, but I prefer to use the Genuine adapter for ease of use. For 3rd party adapter, I remove the spring plate and mount the 3rd party adapter directly onto the lens
Adapter mounted directly onto M42 lens
(Bower adapter with spring plate removed)
Where to find Genuine Adapter:
- Find it used and new in ebay, be warned of non-genuine copy
- New one comes in a green packet and check wording printed on adapter as a guide. Make sure to ask question if it comes from eBay to confirm it is the genuine copy.
- Some discussion seems to suggest that henrys.com in Canada may carry it in stock, cost of shipping may be expensive, please call to confirm.
- KEH may have it
- In broswing pentax website, I see wording for Mount Adapter B , please call and check for ordering. I would assume the label should be Adapter K instead. That B adapter may not be the right one, one has to call up Pentax to order it correctly.
- Local store for special ordering from Pentax
Related & Resources:
  I put this miniature SLR camera into my to-be-sold items and so far I am undecided whether I should part away with this cute camera. The first roll of test film was destroyed when I found that I had a dead battery and the battery was inside the film compartment and I am onto the fifth frame of test shots on the 2nd roll of Kodah 200 film. If you think that I should not sell it to my good friend for $100, please comment and show your support that I should keep it.
I know once I see some good pictures from this camera, I would have a harder time to sell it. This camera is very small and I can have it in my backpack similar to another point & shoot. And I have three lens with the camera 18mm, 24mm, and 50mm when I purchased it as a set with winder and 8 different filters for $120. So far, I am very impressed with the viewfinder and the picture taking with it is quite easy to handle. I get stuck in deciding to trim this or not, please comment and show your support.
I have been busy trimming down my gear. Just want to show you the Pentax Auto 110 camera that I purchased few months ago. Here is the debut of my CBA evident, the shame, the glory, and fun with camera collection. Pictures are taken from K10D with Tokina 28-70 f/2.8-4.3 shooting wide open, I can't sell my Tokina, the product shots are as good as those from my Tamron 28-75 f/2.8 except on the colors.
Pentax Auto 110 meets my K100D
My smallest camera 
Pentax SuperProgram and Pentax Auto 100 
Complete set with 18mm, 24mm and 50mm, winder, filters, etc.
 Related Resources:
- Recommended labs for film development
- Info on 110 films
- A great detailed page on 110 from Rick Oleson
- Sample images taken by 110
Related:
 | Red Rose | Apr 24, '08 12:57 AM
for everyone |
@f/2.8 with K10D  @f/7.1 in 70mm
 @f/7.1 in 28mm (wrong SR focal length in 70mm)   This is an inexpensive manual focus zoom with 'A' aperture. At long end of the zoom in 70mm, it has a 1:3 macro magnification making this zoom very useful. Its wide open aperture is reasonably sharp.
Initial Impressions:
- Very well constructed Tokina lens.
- Not the expensive kind like the ATX and pro model, but well built
- A bit on the heavy side but still compact for 28-70
- Filter size is 62mm and I don't have lens hood yet.
- Macro only applies in 70mm with 1:3 magnification, easy for casual close up photo
- Two touch zoom rings
- Focusing ring is loose making it ideal for quick shooting
- I prefer loose focusing ring over stiff one as I have managed to cope with loose focusing ring much better than those stiff ones.
- I place my thumb and middle finger right next to the focusing ring and I use my index finger to turn focus ring. My placement provides friction on the focusing ring subject to how precise and how fast I want to focus. I vary my grip pressure upon shooting subject to how how I want to engage the focus lock.
- For faster focusing speed and ease of recomposition from center focus, I sometime switch to MF on body.
- The 'A' aperture is super sweet on this manual zoom and it doen't need adjustment in metering to get exposure right, very convenient as compared to M42 manual lens
- I intend to use this zoom lens to complement my Kiron 70-150mm f/3.8 with film body Pentax SuperProgram. The two lens are planned for manual focusing film body.
- Any manual zoom will be pain for SR focal length adjustment.
- Use Menu -> Shake Reduction change focal length
- Recommended alternative to Kit's lens
- Has great 1:3 macro
- Faster speed with f/2.8 aperture and reasonably sharp
- Fast and achievable manual focus in the dark
Related:
 Praktica Super TL1000 is on the left and my first film camera is Praktica MTL5 on the right. I am shipping Super TL1000 to a good friend of mine who bought my Super Takumar 105mm f/2.8 in M42 mount. This camera looks similar to Praktica MTL3 which has a skin cover that looks like a lady's purse to me. A great film camera if you have many M42 lens and you are not shy from a manual camera with a metering needle in the viewfinder.
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