Another lens patent has shown up today. This time an EF-S 17-55 f/3.5-5.6 IS STM. Perhaps it’ll be a new kit lens this year and will replace the current 18-55 IS STM. However, this may also be a hold over from last years kit lens update.
Description and self-interpretation of the patent literature
- Patent Publication No. 2014-21258
- Publication date 2014.2.3
- Filing date 2012.7.18
- Example 2
- Zoom ratio 2.92
- Focal length f = 18.50-32.89-54.00mm
- Fno. 3.49-4.39-5.80
- Half angle ω = 36.44-22.55-14.20 °
- Image height Y = 13.66mm
- 119.77-110.06-120.23mm overall length of the lens
- BF 37.98-52.51-74.3mm
- Example 3
- Zoom ratio 3.09
- Focal length f = 17.50-32.05-54.00mm
- Fno. 3.47-4.38-5.80
- Half angle ω = 37.97-23.08-14.20 °
- Image height Y = 13.66mm
- 119.55-108.81-118.68mm overall length of the lens
- BF 36.59-51.53-73.93mm
- Canon patents
- 4-group zoom of positive and negative positive negative
- Inner folder – Kas (Group 3)
- The fourth lens unit can also be used for anti-vibration
Bryan over at The-Digital-Picture has completed his review of the ST-E3-RT remote for Canon’s 600EX-RT flash system.
From his review:
“If you are a professional or serious amateur photographer and have the ability to choose the Canon’s radio wireless system for your uses, the decision to get one or more ST-E3-RT remote transmitters makes a lot of sense.”
Our reviewer, Justin, didn’t weigh in on the ST-E3-RT but did have high praise for Canon’s 600EX-RT system in our review. The bottom line is that Canon has a real winner with their RT system and all the components of it make for an incredible setup for anyone interested in off-camera flash.
You can purchase the ST-E3-RT from B&H on it’s own, from Adorama or save by buying it as part of a 2 speedlight, 1 ST-E3-RT set.
Canon’s a very large company, often we forget that consumer cameras and lenses are just a small fraction of that, to get an idea of the scope have a look at their financial results for 2013 (if you’re into looking at other people’s money.) Links are PDF’s
An excerpt on digital cameras:
“Within the Imaging System Business Unit, interchangeable-lens digital cameras maintained their top market share despite the challenging environment, which was marked by a drop in demand in Europe and China due to the economic downturn, although demand in Japan continued to expand. In particular, the EOS 5D Mark III and 70D advanced-amateur-model digital SLR cameras continued to realize healthy growth. Furthermore, in Japan, the new entry-level EOS Digital Rebel SL1 and T5i cameras proved popular. As for digital compact cameras, although total sales volume declined due to the market slowdown and the increasing popularity of smartphones, sales volume increased from the previous year for high-added-value models incorporating features that differentiate them from smartphones, such as large-size image sensors and models like the PowerShot SX50 HS and SX510 HS, which feature high-magnification zoom lenses.”
With almost no mention of mirrorless and it’s impact on the DSLR or compact market.
We heard rumour that some folk in the video world are selling off gear in anticipation of a global shutter capable of 2.5k video being made available on an, as of yet, unnamed DSLR. While the wording is hearsay, A global shutter DSLR would definitely be an advancement in film-making tech.
Canon’s been pushing the threshold of video DSLR’s since the launch of the 5DMKII, so there’s no surprise that they would be working to incorporate even more “pro” level video tech in their cameras. It has been their push but, as this is from an unconfirmed source, be sure to sprinkle salt liberally with what you read.
B&H photo has the Sigma 150-500mm f/5-6.3 DG OS HSM lens for sale for $899 after a $170 instant rebate (compare at $1069.00)
Sigma 150-500mm f/5-6.3 DG OS HSM lens