Category Archives: Sony Alpha

Beginner’s Guide to Manual Lenses on the Sony a7

Okay, everybody is talking about how manual lenses work so well on the Sony a7 series but how does it actually work? And which results can I expect? Read on if you want to know.DSC00720

Zeiss Distagon 2.8/28  ~ $250
Olympus OM 2.8/100 ~ $100
 Minolta MC 1.4/50 ~ $60

Why should I use manual lenses?

    • They can be very cheap, you can get a great 1.4/50 lens for $50. For most applications such a lens will give you 90% of the performance of a $1000 Zeiss 1.8/55 FE. For the $1000 you would have to pay for that Zeiss you can buy an excellent set of five lenses from 20 to 300mm.
    • You have a huge choice between thousands of lenses ranging from exotic ones with lots of “character” to some of the very best lenses available.
    • There are 30-year-old primes with better image quality than many modern lenses. Of course progress has happened in recent years but still affordable primes are often sharper than very expensive modern zooms.
    • Old lenses are usually beautifully built from nothing but metal and glass which makes it a joy to handle them. They can last a lot longer than modern lenses which are full of electronics and very complex designs, both of which make them more likely to fail.
    • They also hold their value much better than modern lenses. With some patience you can sell most manual lenses without a loss but with new lenses you can expect to lose 30% in the first year.
    • Manual focusing can be very enjoyable. This certainly depends on application but personally I enjoy working with fully manual lenses a lot more than with any AF lens and I would choose a good manual focus lens over an AF lens (almost) any time. Check out our manual photographers series to read other photographers stories who feel similar about this.
Minolta MD 2/50 ~$25

Why shouldn’t I use manual lenses?

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Review: Kolari Ultra Thin Sensor Stack Modification

Cover glass from the Sony A7, A7II, Kolari version 2 mod, and Kolari Ultra-Thin mod (from Kolari’s website )

Most rangefinder lenses used on a Sony a7 series camera show some serious issues because of the rather thick filter stack in front of the sensor. There are two ways to deal with this. We have previously discussed the use of front filters to counter the induced field curvature. In this article Sebboh reviews another solution.

This is an extended use review of the Kolari Ultra Thin (UT, also sometimes referred to as version 4) sensor stack modification on a Sony A7. This modification removes the AA filter and IR cut filter from a stock Sony camera and replaces it with an ultra thin 0.2mm thick IR cut filter in order to attempt to provide similar levels of performance to the Leica M9 in dealing with the steep ray angles often produced by rangefinder lenses designed for film. I have shot a UT modified Sony A7 for 6 months now and can confirm that it dramatically improves performance with certain lenses (big thanks to Nehemiah for letting me use his lenses and cameras for the comparisons shown here). I will try to outline what kind of improvements can be expected here and what drawbacks there are to getting the conversion done.

Sony A7 Kolari UT | Carl Zeiss Contax G 21mm f/2.8 Biogon | f/11

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Review: Zeiss Batis Apo Sonnar T* 135mm f2.8

Introduction

The blogosphere melted down with frustration when the 135mm Batis was announced. Too slow and too expensive was the common verdict. But it’s also much lighter than the fastest medium teles, and faster and more convenient than the smallest. So is this lens the ideal compromise, or is it stranded uselessly between the fastest and the smallest? That will depend on performance, and handling. This review looks at just those issues.


Sample Images

Images can be seen and downloaded in full resolution here.

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Sony A6500 vs. Sony A7II comparison – which one is the smarter choice?

With the Sony A6500, Sony has entered the terrain of semi-professional crop cameras. The camera is significantly higher priced than other Sony APS-C cameras, and is directly competing with other smaller format flagship cameras like Fuji X-T2, Nikon D500, Olympus OMD-EM1 Mk2 or the Canon Eos 7D Mk2.

Furthermore, the Sony A6500 is now similarly (or even higher) priced than the Sony A7II. This leaves open the question for many people as to whether they should really spend that much on an APS-C camera, or if they should get a full frame body instead. The comparison is obvious, and legitimate, because the cameras share a few key specifications – like sensor resolution, mount, and sensor stabilization. Let’s check what sets these cameras apart from each other.

Sony A7II | Sony FE 1.8/55 ZA
Sony A6500 | Sony 1.8/24
Sony A6500 | Sony 1.8/55 ZA

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Review: Olympus OM Zuiko 50mm f1.2

Introduction

A super fast fifty millimetre lens can be a lot of fun. But arguably it’s not the best all around type of lens to have; it’ll be bigger and heavier than a more modest speed fifty, and likely not as good stopped down. It’s more of an occasional use specialty lens. So it makes sense not to spend vast sums for a Leica Noctilux. No-one makes a modern f1.2; and if and when they do it will no doubt be extremely expensive and very big and heavy. That makes the better  legacy 50mm f1.2 lenses well worth investigating.

This review is of one of the better contenders: The OM Zuiko 50mm f1.2. It has a reputation for being usably sharp in the middle wide open, and sharpening up to decent overall performance stopped down. Does it live up to this reputation? Read on!

Sample Images

High resolution versions of the samples can be found at http://www.davidbraddonmitchell.com/Varia/Zuiko1250/

Specifications

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