Marc Alhadeff from SonyAlphaBlog tested the new Meyer Optik Plasmat 105 f/2.7 lens. He had the Nikon mount version and adapted it on the Sony. This is the first and also likely the last review of this lens because Meyer Optik filed for bancrupcy and the lens can be no more preordered:

Based on the prototype I had, I can confirm that The Meyer Optik APO Makro Plasmat 105mm F2.7 has a unique signature 

• At short distance you get this special bokeh
• Aperture closed down, as from F5.6 you get very good sharpness and a nice color rendering that remembers me some analogue films 

So as usual, not a generalist lens , but a lens for vintage lens lover who like it’s bokeh and color rendering

Aaron Edwards posted this introduction video to show the Fotodiox PRONTO Leica M autofocus adapter for Sony E (available here on Amazon).

This is a hot-to video explaining the setup of the Fotodiox Macro Bellows for Sony E:

Voigtlander Color Skopar 21mm f/3.5 E-mount lens at Amazon and BHphoto. In Europe at PCHstore.

Marc Alhadeff tested the new Voigtländer 21mm f/3.5 FE lens:

The Voigltänder 21mm F3.5 Color Skopar (750 Euros) is a very good wide angle lens

Pros

• Compact and light (very discrete)
• Very good  build construction like all Voigtländer,
• Sharpness: very good to excellent
• Low CA , very good resistance to flare
• Reasonable distorsion
• Good Color rendition
• Very good sunstars effect when closed down

Cons

• Heavy lens fall off wide open that never completely disappear
• Background blur can be somewhat nervous depending of the subject
• A little bit lower contrast and sharpness than the excellent Zeiss Loxia 21mm F2.8

The new 24mm f/1.4 GM is in Stock for the very first time via FocusCamera. It should be in Stock within hours here too: Bhphoto. Adorama. Amazon USA. BuyDig. Calumet Germany. WexUK.

Albert Dros posted his full and very detailes 24mm GM lens review. The conclusion in short:

Overall I was very happy with this lens. Most importantly because I didn’t really feel it was even there in my bag because of how small and light weight it was. And I could almost always find a use for it. I would definitely recommend this lens to anyone. I love shooting extreme wide angle and extreme telephoto, but this lens is just so great for a wide variety of uses and it’s always worth it to carry around. Please check the gallery below for lots of more images I took with this lens in Iceland.

Summary:
Very versatile lens
Excellent sharpness on all apertures even wide open at f/1.4
Very lightweight with only 445 grams
Aperture ring on the lens and a switch to make it stepless.
67mm filter thread
Great sunstar
Great for astrophotography. Stars in corners are sharp with very few coma and aberrations. Best performance on such a lens this fast I’ve seen.
Has some flaring going on that is fixed by putting the lens hood most of the times.
Overall a great allrounder prime. to carry around everywhere

Zeiss 40mm f/2.0 CF lens preorder at Adorama and BHphoto.

We have two new videos shot with the new Batis 40mm lens:

Kim Bear of Wild Child Photography does an excellent job with the new ZEISS Batis 40CF in capturing the sleeping newborn Amelia in this tender video. Using the short focal distance of as little as 9″, she is able to capture the fine details of this family and their new addition.

Greg Watermann shot this on an a9 with the new Batis 40CF at f/2 using Eye-AF, which works pretty well on a moving subject in changing sunlight.

Sigma 105mm f/1.4 for $1,599 at BHphoto, FocusCamera,and Adorama.

Marc Alhadeff tested the new Sigma 105mm F/1.4 FE lens. His conclusion:

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The Sigma 105mm F1.4 DG HSM Art (1500 euros) is an outstanding optics for portrait and well deserve its nickname of Bokeh Master

• Background blur is exceptional with superb 3D effects
• Sharpness is incredible
• AF is fast and very efficient including for eye AF
• Color rendition is very good
• Distorsion / Lens fall off / CA are close to zero
• Bokeh balls are very good but not perfect when close down to F2.8/F4 (nor perfectly circular)à
• Reasonable price considering performances  
• A min of 1/250s shutter speed will be required
• Built in tripod collar is a very nice idea to support the weight of 1.85 kg
• One of the only flaw is the resistance to flare which is just ok as you can get some loss of contrast in direct sun
• Huge (difficult to put in a standard photo bag), heavy (1,85 kg!) , filter size is uncommon (105mm = expensive)

Before testing the lens, I was convinced , I would not be able  stand the weight of it and that this 105mm was a pure technical demonstration of Sigma capability, but when I saw the results, I was astonished and really started to love the lens ! It is a real “Bokeh” machine to produce wonderful portraits ! Its signature is unique. After a second look at the photos made I finally decided to order the lens for myself