New Tamron patent discloses the 18-50mm f/3.6-5.3 for APS-C and 24-120mm f/4.0 for FF lenses

Tamron patented a bunch of zooms for APS-C and FF mirrorless system cameras:

  • 18-50mm F3.6-5.3 for APS-C
    Focal length 18.528 29.994 49.967
    F value 3.605 4.324 5.308
    Half angle of view 39.012 25.350 15.652
    Image height 14.250 14.250 14.250 Overall
    length 97.833 104.114 119.002
    Back focus 37.320

 

  • 25-115mm F4 for full size
    Focal length 25.100 51.943 114.132
    F value 4.105 4.108 4.140
    Half angle of view 42.102 22.145 10.446
    Image height 21.633 21.633 21.633 Overall
    length 167.363 181.899 218.148
    Back focus 39.824

 

  • 28-120mm F4 for full size
    Focal length 28.000 57.647 118.794
    F value 4.113 4.111 4.113
    Half angle of view 39.089 20.085 10.020
    Image height 21.633 21.633 21.633 Overall
    length 173.822 189.939 232.150
    Back focus 45.497

 

via Digicameinfo

New Kolari Magnetic Clip-in Filters for Sony E-Mount

These new ND clip-in filters are now available at BHphoto, Amazon, Amazon DE, Amazon UK.

Kolarivision writes:

We’re excited to introduce our new Kolari Magnetic Clip-in Filters for Sony E-Mount! Compatible with most Sony mirrorless systems, our Kolari Magnetic Clip-In Filters can be used to add rear filtering to Sony E-mount full-frame cameras. They contain an anti-reflective, anti-smudge coating to make cleaning and maintenance easy.

Here are two Instagram videos showing how it works:

https://www.instagram.com/reel/CaSl5F5AqMc/

https://www.instagram.com/reel/CapyoQ6guox/

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