Sunday, March 18, 2012

Plane Of Focus


I really haven't made much use of my Lensbaby Composer, but did wonder what it would be like for close up work. I do have a set of the close up lenses they sell. These sit in front of the lens and basically act as a magnifying glass which does two things - it shortens the focal length and allows you to focus closer.

I wasn't entirely happy with the results so I dug out my cheapy third party extension tubes and with the shortest on the camera and the Lensbaby mounted to that, and no close up filter, I narrowed the angle of view while allowing closer focusing.

The net difference is less depth of field with any lens, but what's more important - the Lensbaby no longer has the look of a centrally sharp image with vaseline smeared on glass set in front of the lens - the shift from sharp to blurred (and stretched) with the Lensbaby at normal distances doesn't usually work for me, but here, with the tilting plane of focus and extremely limited depth of field (as opposed to lens blurring, the result is very pleasing to me.

It's possible I could achieve the same thing with a fast lens and extension tube, but it happens I don't own any fast lenses at all. I did think to use the 70-200 because it has IS, but it's big and awkward to hold, and you can't shift the plane of focus. I think this might turn out to be an interesting combination, Lensbaby Composer and extension tube.

3 comments:

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Massimo said...

In addition to what is written in this last article, I want to thank you right now that I just finished reading your wonderful book by the Italian title "how to photograph at a higher level." Congratulations to the writer, the photographer and the man who accompanied me along this book. I write in this language thanks to Google and I apologize for the errors. Sincerely. Maximum Massarenti-Venice-Italy.

George Barr said...

Massimo:

thank you for writing. You are most welcome. Good photographing,

George