There are some good tutorials on Youtube.

This one's very good, mainly because it shows you how to use an extension tube on a Pentax bellows to get over the crop sensor problem.
i.e. the bellows are made for FF copying.

https://www.youtube.com/watch?v=Xh8vJCvsZtY&list=TLMR76YN0Pw3Y

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Looking at that gorgeous Asahiflex, the MIRRORLESS brigade have it all wrong
It's not the mirror that makes the camera look bulky it's the PENTAPRISM

Pity the K-01 wasn't just a Digital Asahiflex
It could have even had a removable pentaprism.

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What's the magnification and are they a zoom type.

They must be quite old. They have the Asahi name?

They don't mention SMC either which was used on 70's binoculars.
So possibly 60's.

Edit: I can see the magnification on the JPG it's 6x25 and not a zoom.


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I still have my Z-1 and Z-1p (along with the MZ-S) they had advanced digital transmission possibilities (D2) which were never fully utilized or documented. I used to love the Hyper Wheels.
Unfortunately there's not much interest in sophisticated Pentax cameras and they go for very little money nowadays. No doubt Pentax have noticed this.

The amount of Interest in the 'A' setting and not the manual ring can clearly seen in the demand for Tamron Adaptall adapters. At one time the 'A' ones were going for £70 and the 'M' ones almost unsaleable. The first thing anyone did buying an Adaptall lens was get rid of the 'M' adapter and get the 'A' version.

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The reason I mentioned 1975 above is that everyone seems to be stuck there! 40 years ago I expect you also go on car forums demanding that they bring back 3 speed gearboxes

Pentax moved on about 20 years ago....... so should you It wouldn't be a bad idea if you got to know something about how your camera works instead of making stuff up all the time

The in camera aperture adjustment was a big step forward. It allowed the camera to control the aperture accurately to fractions of a stop. The aperture ring on modern cameras can't tell the camera what it's set on You should have your camera set to 1/3rd stops anyway..... very useful with long lenses to be able to squeeze out a bit more DOF. f/8 f/9 f/10 etc. The camera on auto could set f/8.3 etc.

We are lucky that they have kept the green button, it's actually the most accurate method of metering..... stopped down due to lenses vignetting wide open.

Aperture rings are quite expensive to produce and need a complex cam system to control the aperture.

I actually like old lenses particularly the 'K' Series. The 'A' Series are more useful because I can control them from the camera and see the aperture on the rear LCD screen.

The first lens I ever had without an aperture ring was in the 1980's made by Tamron.... something like 28-90mm.

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I don't like 2015 at all Can we move everything back to 1975

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Thanks for that. There's a link to more info at the bottom of the page.

Pentax need to redesign their lens caps. The Sigma ones are much better..... Unfortunately expensive.

Note the 'FOR SA/KPR' on this one.....

Ebay_Link

3rd part body caps are also marked SA/KPR so they must be almost identical apart from levers and contacts.
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The clever folks at Tamron made the Adaptall mount fit just about everything.

Another myth is that the Pentax K mount was copyright and had to be reverse engineered....... WRONG! It was released from Day 1 as a universal open source mount to replace the M42 screw mount. That's why the likes of Ricoh, Cosina, Zenit, Chinon, Miranda, Prinzflex etc. used it. All Budget manufacturers who would have used something simpler had they had to pay a royalty or if it was too expensive to produce.

I've not looked at Sigma's own mount, but their caps are the same ones they use for Pentax marked 'FOR SA/KPR' so it must be the same bayonet.

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St. Helens is in Merseyside, but has a Warrington Postcode (WA).

It all used to be Greenall Whitley Land according to Car Stickers....
Let's all drink some beer!

http://www.buzzfeed.com/sophiemaden/21-words-that-have-a-totally-different-meani...#.brRgwpXe

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I've used 70-200ish zooms since the Spotmatic days and always found them to be badly lacking in coverage at the 70mm end. It was always a pain removing a big zoom just to put a 50mm standard on. A 50-200mm makes a lot more sense for FF, but I don't think anyone does one.

Edit: Canon seem to have made some 55-200mm's such as the
Canon EF 50-200mm f/3.5~4.5L AFD Standard-to-Telephoto-Zoom

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