Lens mount adaptors

Wasp · 11-12-2019, 01:14 PM - **1 Like**

Originally posted by UncleVanya

Pentax has a fairly long flange focal distance which makes adapting other lenses complicated. Nikon for example is slightly longer but not long enough for a traditional adapter.

The long flange distance means that PK lenses can be made to fit on quite a few other SLRs. You could say that the K mount is universal donor of lenses. This is both good and bad for us Pentaxians. There will always be a smallish demand for K mount lenses, driving up prices. But not by a whole lot, so don't sweat it. The really bad thing is the ~~Philistines~~ Canonians e.a ruining aperture levers, as I pointed out above.

**UncleVanya** · 11-12-2019, 02:47 PM - **2 Likes**

Originally posted by Wasp

The long flange distance means that PK lenses can be made to fit on quite a few other SLRs. You could say that the K mount is universal donor of lenses. This is both good and bad for us Pentaxians. There will always be a smallish demand for K mount lenses, driving up prices. But not by a whole lot, so don't sweat it. The really bad thing is the ~~Philistines~~ Canonians e.a ruining aperture levers, as I pointed out above.

True. Along with Nikon our lenses are butchered by those evil Canon users. Lol.

Wasp · 11-15-2019, 01:51 AM - **2 Likes**

Originally posted by UncleVanya

True. Along with Nikon our lenses are butchered by those evil Canon users. Lol.

I have wondered if it is possible to cut a notch in the Canon mirror to avoid the Pentax aperture lever, or make some other mod to the body. Perhaps take out the mirror altogether and use live view all the time. For some reason I am unable to find any information on how to accomplish any such minor modifications.

**UncleVanya** · 11-15-2019, 06:52 AM - **2 Likes**

Originally posted by Wasp

I have wondered if it is possible to cut a notch in the Canon mirror to avoid the Pentax aperture lever, or make some other mod to the body. Perhaps take out the mirror altogether and use live view all the time. For some reason I am unable to find any information on how to accomplish any such minor modifications.

It's a conspiracy, "they" want all the vintage glass to be ruined for Pentax users so they hide this solution behind words like crazy and insane...

y0chang · 11-15-2019, 07:23 AM - **1 Like**

A lot users now are switching to mirrorless for adapting lenses. Live view for exposure, focus peaking, short flange distance so that you can adapt any lens without a glass adapter or add a speed booster to get full frame field of view on crop sensors.

A really good resource for this is:

Manual Focus Lenses Carl Zeiss Jena Konica Hexanon

Oddly enough even though adapted pentax lens have no autofocus nor aperture metering, the folks who adapt lenses love Pentax, because of the uniqueness of rendering.

One of the best reviews of the 31mm limited was this article by a sony user who adapted it. It was the one of the few reviews that are found outside of this forum of the FAs on full frame.

Guest Review: Pentax SMC FA 31mm f1.8 Limited - phillipreeve.net

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11-12-2019, 01:14 PM - 1 Like	#16
Wasp Pentaxian Join Date: Mar 2017 Location: Pretoria Photos: Gallery Posts: 4,659	Originally posted by UncleVanya Pentax has a fairly long flange focal distance which makes adapting other lenses complicated. Nikon for example is slightly longer but not long enough for a traditional adapter. The long flange distance means that PK lenses can be made to fit on quite a few other SLRs. You could say that the K mount is universal donor of lenses. This is both good and bad for us Pentaxians. There will always be a smallish demand for K mount lenses, driving up prices. But not by a whole lot, so don't sweat it. The really bad thing is the ~~Philistines~~ Canonians e.a ruining aperture levers, as I pointed out above.

11-12-2019, 02:47 PM - 2 Likes	#17
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,394	Originally posted by Wasp The long flange distance means that PK lenses can be made to fit on quite a few other SLRs. You could say that the K mount is universal donor of lenses. This is both good and bad for us Pentaxians. There will always be a smallish demand for K mount lenses, driving up prices. But not by a whole lot, so don't sweat it. The really bad thing is the ~~Philistines~~ Canonians e.a ruining aperture levers, as I pointed out above. True. Along with Nikon our lenses are butchered by those evil Canon users. Lol.

11-15-2019, 01:51 AM - 2 Likes	#18
Wasp Pentaxian Join Date: Mar 2017 Location: Pretoria Photos: Gallery Posts: 4,659	Originally posted by UncleVanya True. Along with Nikon our lenses are butchered by those evil Canon users. Lol. I have wondered if it is possible to cut a notch in the Canon mirror to avoid the Pentax aperture lever, or make some other mod to the body. Perhaps take out the mirror altogether and use live view all the time. For some reason I am unable to find any information on how to accomplish any such minor modifications.

11-15-2019, 06:52 AM - 2 Likes	#19
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,394	Originally posted by Wasp I have wondered if it is possible to cut a notch in the Canon mirror to avoid the Pentax aperture lever, or make some other mod to the body. Perhaps take out the mirror altogether and use live view all the time. For some reason I am unable to find any information on how to accomplish any such minor modifications. It's a conspiracy, "they" want all the vintage glass to be ruined for Pentax users so they hide this solution behind words like crazy and insane...

11-15-2019, 07:23 AM - 1 Like	#20
y0chang Veteran Member Join Date: Jan 2012 Location: United States Posts: 793	A lot users now are switching to mirrorless for adapting lenses. Live view for exposure, focus peaking, short flange distance so that you can adapt any lens without a glass adapter or add a speed booster to get full frame field of view on crop sensors. A really good resource for this is: Manual Focus Lenses Carl Zeiss Jena Konica Hexanon Oddly enough even though adapted pentax lens have no autofocus nor aperture metering, the folks who adapt lenses love Pentax, because of the uniqueness of rendering. One of the best reviews of the 31mm limited was this article by a sony user who adapted it. It was the one of the few reviews that are found outside of this forum of the FAs on full frame. Guest Review: Pentax SMC FA 31mm f1.8 Limited - phillipreeve.net

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