Triple Perar for K-mount?

Started Feb 20, 2014 | Discussions thread
Flat view
Zvonimir Tosic
Zvonimir Tosic Senior Member • Posts: 2,563
Triple Perar for K-mount?

Several users have posted recently their images taken with their 135mm Takumars. Having only 4 lens elements, Takumar’s look is favourite image look of mine among many Pentax lenses.

And there is one more, an MS Optical Super Triplet Perar (only three lens elements) for a Leica M.

Why triplet?

The simplest optical design that is capable of correcting all of the seven Seidel aberrations over a wide field of view is the Cooke triplet, developed by H. Dennis Taylor in 1893. It is named after the optical company in York, England, for which Taylor worked at the time, Cooke and Sons (later to become Cooke, Troughton and Sims). Taylor’s designs, despite their antiquity, are close to optimum for the aperture and field he intended, given the glass types available in his day.

However, at around 1925 with the rise of the Tessar lens designed by Paul Rudolph of Zeiss, the Cooke triplet was starting to be relegated to cheaper lenses such as those in compact cameras, due to its simple design affording low cost manufacturing.

Mr Sadayasu Miyazaki of MS Optical (a gentleman who also designed an MS Sonnetar 25/1.1 for Pentax Q), a small independent manufacturer of lenses and camera accessories, believes that a well-designed triplet is superior to the Tessar.

Mr Miyazaki-san (click to read more about him )

Only a very few lenses in history exploited the full power of the formula, such as an early version of the Leitz Elmar 90/4 with three elements. He started researching and designing his own ideal triplet lens at the highest level possible, using 21st century materials and manufacturing techniques.

The result was the MS Super Triplet Perar 4/28, shortly followed by MS Optical Super Triplet Perar 3.5/35.

There is something innocently delightful and unpretentiously direct in rendering of such lenses, which I find relaxing and evocative.

MS Optical Super Triple Perar 28/4 and examples:

MS Optical Super Triple Perar 35/3.5 and examples:

MS Sonnetar 25/1.1 for Pentax Q:

Leitz Elmar 90/4 (three elements)

And example of using it on a Sony NEX.

-- hide signature --

Madamina, il catalogo è questo; Delle belle che amò il padron mio; un catalogo egli è che ho fatt'io; Osservate, leggete con me.

Pentax K-m (K2000)
If you believe there are incorrect tags, please send us this post using our feedback form.
Flat view
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow