Canon patent for ND filter with antireflection coating

canon patent

Canon patent for an ND (Neutral Density) filter with antireflection coating. This patent may lead to a high performing ND filter with minimal image quality degradation.

  • Patent Publication No. 2015-200805
    • Published 2015.11.12
    • Filing date 2014.4.9
  • Canon patents
    • On the surface of the transparent substrate made of synthetic resin, deposited the inorganic hard film of fine uneven periodic structure
    • The refractive index changes toward the surface layer side from the transparent substrate side
[via Egami]

Recsea underwater housing for Canon EOS 7D Mark II announced

Recsea Underwater Housing For Canon EOS 7D Mark II Announced

Recsea announced an underwater housing for the EOS 7D Mark II, the Recsea RDH-C7DMkII will cost $2,880 without and $3,260 with fixed dual grip.

Press release (via Dive Photo Guide):

Recsea announces CANON EOS 7D Mark II UW Housing RDH-C7DMkII


  • Compact and durable, CNC precision machined corrosion-resistant aluminum housing.
  • Lightweight, ergonomically designed.
  • Housing Maximum Operating Depth (MOD) of 100 meters (328 feet), depending on Lens Port.
  • Shutter Trigger.
  • Built-in Camera Fixing Plate.
  • Airlock Vacuum Valve.
  • Rear Control Dial with push button function.
  • RECSEA original Secure-Latch locking system for easy opening and closing.
  • Dual Housing Port to Lens Port O-ring system.
  • Quality silicone O-ring with wider Back Cover contact surface for added protection at greater depths.
  • Complete camera function control.
  • Wide variety of optional Lens Ports, Focus and Zoom Gears, and other supported options.


  • Compatible Camera: CANON EOS 7D Mark II.
  • Maximum Depth: 100 meters (328 feet).

Main Body and Back Cover: Corrosion-resistant Aluminum Alloy, Anodized Lever. Buttons, Dials: POM, PC. Flash, LCD Windows: Hard Coat Acrylic Flash Window Diffuser: Polycarbonate (POM). Screws, Springs, Shafts: Stainless Steel, Galvanized


W201mm x D116mm x H162mm (Housing only).
1.860kg (Land / Housing only)
2.433kg (Land / Housing w/Aluminum Fixed Dual Grip)
2.206kg (Land / Housing w/POM Fixed Dual Grip)
Standard Color: Gun Metallic Zero-VOC Enamel Coating.

Included Accessories
Hand Strap, Strobe Mask/External Strobe Connection Mount and Screws x 2, Housing Port Cover, Reserve O-rings (1 Main Body and 1 Housing Port), O-ring Removal Pick, O-ring Grease

EOS 7D Mark II

Sigma 20mm f/1.4 DG HSM Art lens in stock and ready to ship at $899

Sigma 20mm F/1.4 DG HSM Art Lens In Stock And Ready To Ship At $899

The new Sigma 20mm f/1.4 DG HSM “Art” lens is in stock at major retailers at $899: Amazon Adorama B&H Photo

Sigma 20mm f/1.4 DG HSM key features:

  • EF Mount Lens/Full-Frame Format
  • Aperture Range: f/1.4 to f/16
  • Two FLD Elements and Five SLD Elements
  • Two Aspherical Elements
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Rounded 9-Blade Diaphragm
  • TSC Material, Brass Bayonet Mount
  • Built-In Petal-Shaped Lens Hood
  • Compatible with Sigma USB Dock

Canon EOS-1D X Mark II specs list surfaces [CW3]

Canon EOS-1D X Mark II Specs List Surfaces [CW3]

A list of specifications for the upcoming Canon EOS-1D X Mark II surfaced on the web, and it’s a list that could get it right.

The EOS-1D X Mark II might have the following specs:

  • 24mp full frame Canon sensor
  • 80+ AF Points
  • New processor technology
  • 14+ stops of dynamic range
  • Nearly 15fps
  • 4K video (max frame rate unknown)
  • Dual CFast
  • Slightly larger LCD

The new announcement candidate date for the EOS-1D X Mark II is Q1 2016. Stay tuned for more…

[via Canon Rumors]

Canon announces winners of ‘Iconic Images’ competition

iconic images

To see all 10 winning images from the competition, please visit the ‘Iconic Images’ competition page. Canon press release:

Canon announces winners of ‘Iconic Images’ competition

London, UK, 24 November 2015 – Canon Europe today reveals the 10 finalists and overall winner of its pan-European ‘Iconic Images’ competition. Emanating from over 12,500 entrants across 18 European countries, Matt Doggett from the UK was crowned winner by a panel of internationally acclaimed photographers, including Canon Ambassador Brent Stirton and Getty Images photographer Toby Smith, for his entry “Visionary Changes.” Matt’s striking underwater shot of gannets fishing for food was selected for his technique, creativity and original and interesting interpretation of the brief, a story of change. “When gannets hit the water the shape of their eyes change instantly giving them perfect vision of the fish upon which they prey,” he said.

Read more

Canon EF 35mm f/1.4L II review (outstanding image quality, says Photography Blog)

Canon EF 35mm F/1.4L II Review (outstanding Image Quality, Says Photography Blog)

Photography Blog posted their exhaustive review of Canon’s new EF 35mm f/1.4L II lens. The EF 35mm f/1.4L II is a highly regarded lens, well suited for travel photography and journalism. In the conclusion they write:

Image quality is outstanding. Chromatic aberrations are virtually non-existent thanks to the new Blue Spectrum Refractive Optics technology, geometric distortion is impressively low for a wide-angle lens, and the Sub-Wavelength Structure Coating (SWC) coatings successfully prevent contrast loss attributable to flare. The only real optical issues are some corner shading at the maximum aperture, something that every full-frame shooter has to put up with, especially when using wide angles, and a slight lack of critical edge sharpness between f/1.4-f/2.8 and f/16-f/22. Read the review…

There is nothing not to like on the EF 35mm f/1.4L II, except for the price ($1,799). Beside the excellent build quality, the EF 35mm f/1.4L II is also a lens of a new generation, planned and build with Canon’s EOS 5Ds and EOS 5Ds R in mind.

Canon EF 35mm f/1.4L II key features:

  • EF Mount L-Series Lens/Full-Frame Format
  • Aperture Range: f/1.4-22
  • Blue Spectrum Refractive Optics
  • Two Aspherical Elements, One UD Element
  • Subwavelength and Fluorine Coatings
  • Ultrasonic Autofocus Motor
  • Full-Time Manual Focus Override
  • Weather-Sealed Design
  • Rounded 9-Blade Diaphragm

Canon EF 35mm f/1.4L II: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay