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The Sony a7’s loosening mount

39 Comments

I am certainly not the first to report that the original Sony a7 has a problem with it’s mount which is loosening over time but so far I haven’t seen an illustration of how this problem can affect image quality.

My Sony a7 arrived on Nov 20. 2013 so it is very close to two years old now. Until now I had noticed that the mount had gotten a little more play over time but it wasn’t a real problem to me.

But now a point is reached were it has become a real issue for me. If I mount a lens like my FE 4/16-35 and pit the camera on a tripod I can see a gap between lens-mount and camera-mount! And the lens also has some rotational play.

DSC09954

 

Does the problem affect image quality?

Yes it does!

Continue reading The Sony a7’s loosening mount →

lenses, Review

Zeiss Milvus Distagon 1.4/50 – Review

32 Comments

DSC09857Classic 50mm lenses are rather small, affordable and not very good wide open. The new Zeiss Milvus 1.4/50 is very big, very expensive and very good from f/1.4.

For this review I used the Milvus on my Sony a7.

All images in this review are processed from raw unless I mention otherwise. I did nothing fancy, just a little contrast and some sharpening.

Disclosure: This copy was loaned from Zeiss at no charge.

Sample Images

 

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Milvus 1.4/50 | Sony a7 | f/2 | full resolution
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Milvus 1.4/50 | Sony a7 | f/1.4 | full resolution

 

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Milvus 1.4/50 | Sony a7 | f/1.4| full resolution

Continue reading Zeiss Milvus Distagon 1.4/50 – Review →

Leica M, lenses, Review

Review: Voigtlander Ultron 1.7/35mm – punches way above its weight

175 Comments
DSC08254
Voigtlander 1:1.7/35 on Sony a7

A fast 35mm lens which is very sharp, has nice bokeh and is also small? This sounds too good to be true but the Voigtländer Ultron 1.7/35 VM is all that. Of course there is are also a few issues but all in all it’s a pretty great lens.

Sample Images

Voigtländer 1.7/35 | f/11
Voigtländer 1.7/35 | Sony a7 | f/11
Voigtländer 1.7/35 | f/11
Voigtländer 1.7/35 | f/1.7
Voigtländer 1.7/35 | f/11
Voigtländer 1.7/35 | f/1.7

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lenses, Minolta SR mount, Review

Minolta MC / MD Macro Rokkor 100mm 1:3.5 – Review

15 Comments

MC100f3p5Macro-4

Minolta MD 3.5/100 Macro – SpecificationsMC100f3p5Macro-2

Diameter: 75mm
Length: 89mm
Filter Thread: 55mm
Weight: 600g
Max. Magnification :  1:2
Close Focusing Distance (from the sensor/from the front of the lens): 45cm /27cm
Number of aperture blades: 6
Elements/ Groups: 5/4

Price:  (February 2015): 90-150€ in good condition at ebay.de or $110-170 at ebay.com (affiliate links)

i want to thank Marc for borrowing me the lens to write this review!

Image Samples in low resolution

backlit leave

last light

backlit detail

 

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