New Member Registered: July, 2013 Posts: 2 | Review Date: December 20, 2023 | Recommended | Price: $18.00
| Rating: 10 |
Pros: | Works, no play | Cons: | | Camera Used: K-50, K-70
Handling: 10
Value: 10
| | Needed one for a 500mm Tamron mirror lens I picked up. Does exactly what it's supposed to - adapt the lens to a Pentax K mount camera. The KA version is more expensive and unnecessary with a fixed aperture lens.
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Otis Memorial Pentaxian Registered: March, 2007 Location: Vancouver (USA) Posts: 42,007 | Review Date: March 11, 2018 | Recommended | Price: None indicated
| Rating: 10 |
Pros: | Well-built | Cons: | None, if used properly | Handling: 10
Value: 10
| | This review is for the original Adaptall (v1) Pentax K.M. adapter with the single index tab and no aperture scale. I also own the Adaptall-2 P/K and P/KA adapters and was pleased to find that the original has somewhat better build. The flange is substantial and very easy to mount to the lens. and fit to camera is very smooth as well. In addition, the red index mark for mounting is large and easily visible without having to peer at the rear of the lens.
The first version of this review had an additional paragraph suggesting caution when used with other than an original series Adaptall lens. The caution was based on the apparent extra thickness of the mount and initial testing where infinity focus apparently not possible. At the prompting of the mods, I have retested the original version mount with each of my Adaptall-2 lenses and was able attain infinity focus on a tall tree some 1.5 miles distant. False alarm!
As a result, I can recommend the original Adaptall (inscribed "For Pentax K.M.") for both Adaptall and Adaptall-2 lenses where an auxiliary aperture scale (used with the so-called "Judas Window" on some Pentax film bodies) is superfluous. This original version is more robust and easier to attach to the lens and also allows for easier handling overall with heavier lenses such as the SP 70-210/3.5 (19AH).
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Site Supporter Registered: November, 2012 Location: North Wales Posts: 2,868 | Review Date: November 22, 2016 | Recommended | Price: $20.00
| Rating: 9 |
Pros: | Essential, reliable, proven performer. To be preferred to new clones from eg China with no aperture connection. | Cons: | No aperture lever guard (but it is hinged, not fixed). | Handling: 9
Value: 10
| | All the pentax K bayonet adaptall mounts work equivalently on the range of adaptall lenses, and the two versions of the P-KM mounts both provide equivalent functionality. The only lens that is idiosyncratic AFAIK is the 200-500mm f6.9 06A (and ? its predecessors). This has only one "tab" on the lens side to accomodate the "ears" on the mount - one ear is left hanging. The main consequence is that a PKA mount will not slot into AE/f32 auto aperture position.
Typical market price for a PKM mount is $10-30, depending on source etc. Cheapest way to acquire is probably with a lens.
Only problems I have ever had with one are:
1. A slightly bent aperture lever (serious - could damage camera!). Note these don't have a guard, like most lenses do.
2. bent/broken/missing "ears" (that engage with the slots in the adaptall lens aperture ring). The ear that moves the flange with the f-stop numbers on doesn't matter. I have cannibalised relatively worthless eg cfd or md mounts for replacement ears and screws.
3. Movement of the parts stiff or seized up due to poor/damp storage.
4. Out of sync or ineffective actuation of the iris has normally IME been due to a problem on the lens side, not the mount*. The mount has a pivotted plate that pushes against a wheel on the lens side, I have had a 24mm 01B where that wheel had become knocked out of position. *Don't assume a problem if the iris isn't working on an adaptall(-1) lens. Check the A-M switch!! | |