What lens would you like to see introduced next by Sony?

Started Aug 15, 2009 | Discussions thread
DUSTY LENS Veteran Member • Posts: 4,308
Re: What lens would you like to see introduced next by Sony?

cgarrard wrote:

Pick one.


I have a concept lens that would solve some problems in resolution and most IQ difficulties .

This would be a short range zoom with zero distortion wide end to long end . Of course it needs very high resolution , high contrast to the edges , at all zoom settings also .

The lens would be in the range of 28 to 90mm with good light gathering ( f2 would be optimal for sharp and exact focusing .

The lens would naturally be ready for use as a shift lens without any special shift mechanism built into the it so it could be used as a normal light weight carry around lens also . It would also be affordable .

This use would demand a steady tripod .

The concept of this lens is that you get the sharp central sweet spot near the long end of the format ( like a shift lens does by lens movement ) You lock all tripod adjustments first , then you just shoot off two or three quick shots with the central area of the first shot on the critical focus portion of the subject in the first shot , than you zoom wider for a quick second shot , then you zoom all the way wide for the last shot .

In Photoshop you add canvas to the mid zoom and the long end zoom shots to make them all the same size for layers , and then you expand the pixel count in the mid and full wide shots until all three show the exact same subject size in layers while you switch the view from the central ( or long shot ) to the next two ( each wider shots ) . When this switch is without any change of subject size or position you only need match the exposures and feather the edges of the inside shots borders and merge all three together for the single shot you want .

After this , you can crop off the unwanted end or sides of the final merged shot .

If the lens has no distortion the shot will look like a single shot made from a shift lens except it will probably be much sharper and cleaner especially at the sweet spot at the center of the first long end shot .

This three shot series of shots could be made very quickly because nothing moves , you only zoom and shoot . Even a lively model could hold still for this brief time .

All of the shots would be in focus because the critical focus is done at the long end first shot only and not changed again for all three shots .

You could make a zoom lens far outperform at least most prime lenses , and probably any zoom lens available by using this three shot method . I think it could out perform any shift lens out there too .

You might even be able to make a 24.6 MP shot as good as any , or better with a 12 MP camera .

What do you think ? Has anybody done this ?

Stitching does not qualify as this method , because I think moving the camera angle will always cause shifted image objects and misaligned image seams .

So this explains why I want a very special zoom lens .

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