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Patent: 50-300mm f/4.5-5.6 DO for EF-S & EF-M

Patent: 50-300mm f/4.5-5.6 DO for EF-S & EF-M

By Canon Rumors | April 22, 2016 | Canon Patents

That patent train continues for EF-M lens optical formulas, this time we see a 50-300mm f/4.5-5.6 DO lens for APS-C sized sensors. This optical formula patent shows the lens for both EF-M and EF-S mounts. It’s definitely interesting to see diffractive optics development for consumer grade cameras.

Patent Publication No. 2016-57444 (Google Translated)

  • Published 2016.4.21
  • Filing date 2014.9.9

Example 1

  • Zoom ratio 5.59
  • Focal length 51.77 135.00 289.53
  • F-number 4.65 5.05 5.85
  • Half angle of view (degrees) 14.78 5.78 2.70
  • Image height 13.66 13.66 13.66
  • The total lens length 126.05 169.37 184.15
  • BF 35.50 35.50 35.50

Read more…

Crazy Deal: Canon EOS 80D Body w/Pixma Pro-100 Bundle $849

Crazy Deal: Canon EOS 80D Body w/Pixma Pro-100 Bundle $849

By Canon Rumors | April 20, 2016 | Ad Post

Authorized Canon reseller BuyDig is selling the Canon EOS 80D w/Pixma Pro-100 bundle for $849 (After $350 mail-in rebate). Currently, the Canon EOS 80D body retails for $1199, so you’re saving $350 on a brand new DSLR and receiving a free printer, memory card and paper.

You can download the mail-in rebate form here.

Canon EOS 80D body w/Pixma Pro-100 Bundle $849 (Reg $1199 + printer/memory card)

These items will come with a full 1 year Canon USA warranty.

Patent: GPS & Wifi in Metal Bodies

Patent: GPS & Wifi in Metal Bodies

By Canon Rumors | April 20, 2016 | Canon Patents

We all know that the brand new Canon EOS-1D X Mark II has GPS function built in, it’s the bump you see on the top of the viewfinder. However, the camera does not have WiFi built in for various reasons, and most of them good ones, as reliability and performance is going to be way better with the external solution, something sports professionals shooting 14fps need.

The Canon EOS 5D Mark IV will have WiFi built in we’ve been told and this patent mentions that it’s possible to put GPS and WiFi under the bump on top of the viewfinder.

Patent Publication No. 2016-53665

  • Published 2016.4.14
  • Filing date 2014.9.4
  • Magnesium alloy
  • Providing a GPS module to the finder part
  • To protect the GPS module in the wireless communication lid made of a synthetic resin material
  • The GPS module and the warship portion connected by high thermal conduction efficiency copper foil tape, heat away

Canon had said that getting reliable wifi connections with a full metal camera body was a challenge, and that’s why the previous generation of full metal bodies cameras such as the EOS 5D Mark III didn’t have the feature, but the EOS 6D, which doesn’t have the same durability did.

Review – Laowa 15mm f/4 1:1 Macro Shift Lens

Review – Laowa 15mm f/4 1:1 Macro Shift Lens

By Canon Rumors | April 20, 2016 | Canon Reviews

Keith over at Northlight Images has completed his review of the very unique Laowa 15mm f/4 1:1 Macro Shift lens.

From Northlight:

A thoroughly interesting lens.

If you’re not put off by its completely manual operation, then it’s capable of excellent performance as a macro and as a standard wide shift lens.

The 1:1 capability is likely to be unused by many for the sheer practical difficulty of having the focal plane only millimetres from the front element.

0.4:1 magnification increases this distance to a more workable 25mm or so.

The shift function works best with a crop sensor and allows for interesting control over background placement. I expect to see plenty of samples of small vertical objects (mushrooms/insects on twigs) with a perfectly placed soft out of focus background. Just take note that such shots will need a lot of care with camera mounting and lighting (I didn’t use flash once for this article). Read the full review

Review – Canon EF 50mm f/1.0L

Review – Canon EF 50mm f/1.0L

By Canon Rumors | April 18, 2016 | Canon Reviews

I lent Dustin my copy of the Canon EF 50mm f/1.0L to review, as we both figured it’d be fun to take a look at one of Canon’s most collectible lenses.  The EF  50mm f/1.0L was introduced in September of 1989 and was the fastest SLR  lens available during its production run, which ended in 2000.

This lens isn’t an amazing optical performer, but as someone mentioned on Twitter recently, if you want a unique look, use a unique lens and the EF 50mm f/1.0L fits the bill.

From Dustin:

Canon didn’t make this lens (in quantity) for long, but it was a shot across the bows of Nikon, Pentax, and others that said, “Look what we can do!” The technologies (and lens body) pioneered in this lens were implemented into the far more practical (yet still extreme) EF 85mm f/1.2L, and seven years later evolved into the EF 85mm f/1.2L II lens; one of the most prized portrait lenses in the world. The burst of creativity and advanced engineering that resulted in this lens enabled Canon to create more accessible and successful autofocusing f/1.2 lenses (50mm and 85mm), a feat that no one else is replicating even in 2016.  It is worth noting that still today Canon is the only one producing autofocusing lenses with an f/1.2 maximum aperture. Read the full review

I now have the lens back in my possession and look forward to shooting with it on the new EOS-1D X Mark II.

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