K-5D Mark III: DA 18-55 II Converted to a 24-80 FULL FRAME Lens!

As we all knew, the DA18-55 lens (whatever version) does not cover 135 full frame image circle (and actually so do all other DA zoom lenses). Here is what we see when the lens is attached on a FF DSLR at 18mm:-


(See original post here)

Those DA zoom lenses, in 11 nos, are actually NOT compatible with 135 FF. Well, is there any technical solution and work around? Note that these days after I have posted about the new Pentax FF rumour, I've seen around in the Pentax land Pentaxians have been discussing crazily about it and one thing that is commonly raised is about the lack of Pentax FF lenses in the current lens lineup!

Now, let me announce my latest invention, the Riceh. K-5D Mk III, with built-in 1.4X magnifying glass on image circle! ;-D


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Then just mounted a DA18-55II onto it!


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Project succeeded! Now, a DFA 24-80mm F4.9-7.8 Full Frame lens is easily obtained! ;-D Look at the large samples of mine below to see is the IQ is good enough (lens was stopped down).

At the Wide Side:-

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At the Tele Side:-

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After all, I believe Pentax will market the DA 1.4 SDM Tele-Convertor very soon, so as to make all the old DA zoom lenses usable as if they were designed on the cropped sensor, and actually now can be a little bit wider, too. For example, in the above case, the original APS-C film equivalent 28mm field has become nearly a 24mm after the conversion.

People will then say now the lenses are too slow then. No problem, we all have recently learnt that Pentax is going to go down this route no matter how! :-o


Related:-

DA 18-55 on Full Frame

Compatibility of DA Lenses on Full Frame

The "Canon" 40mm FF Pancake is Here! :-D

Sample Photos of Full Frame Fisheye and 43 Limited on 5D