EF Mount for your iPhone 3 or iPhone 4
I was waiting, and waiting, and Photojojo finally did it. A lens mount adaptor for your EF lenses and the iPhone 3 & 4!
I love cool and unique “why the heck not” products. I hope to get my hands on one and adapt an EF 800 f/5.6L IS to it and go birding. That’s right…. birding with an iPhone!
The iPhone 4 version is $249 USD and the iPhone 3 version is $190. A steal for most photography accessories.
Product Page
cr

A Canon Foveon Type Sensor?
3 Layer Image Sensor
A Canon patent was recently released showing a 3 layer sensor. Sigma has been the leader (I use the term lightly) in this type of sensor design when they purchased Foveon.
Patent Publication No. 2011-129785
- 2011.6.30 Release Date
- 2009.12.18 filing date
Canon patent
- Back-illuminated imaging device
- Plurality of light receiving portion is provided in the order BGR
- In one pixel, the charge collection in the center section, provided the charge read to the end
- Focusing capabilities of the microlenses, light in the center of the charge collection has increased, the charge read out at the end of the light is reduced
- Therefore, in reading the charge of B, it becomes difficult to receive light G, to prevent mixing
- Widest area of B. By mixing pixels with narrow spacing of the pixels (light receiving portion for receiving the G colored in B) to prevent
- Read the charge and B matches the central microlens. And easy to read the charges received by B, to prevent mixing
- Improve performance by preventing the mixing color separation
Canon is a sensor manufacturer, this sort of research and development was almost a given. There’s lots of advancements to be made in sensor technology.
If anyone has better knowledge of this type of technology, please join the discussion on the forum thread.
thanks Evgnii
cr
The inevitable coming soon?
In an interview with Reuters, the head of the camera division Masaya Maeda says Canon is ”…considering the technical aspects,” in regards to the mirrorless segment.
He also goes on to say that ”We will launch an interesting product next year,” saying that it is “small”, but didn’t specify if it was a mirrorless camera system or not.
Read the full article
thanks m
cr
LensRentals.com Sale!
The folks in Memphis (Cordova) have listed some used Canon 70-200 f/2.8L IS lenses for sale. As well as a host of other video centric accessories.
You can buy from LensRentals.com with the utmost confidence, their grading scale is over the top thorough.
cr makes no commissions on any sale from LR.com, I just know some people prefer to buy used stuff from someone reputable.
Shop Here
cr

2.0x Teleconverter

1.8x Teleconverter
Patent Publication No. 2011-123336
- 2011.6.23 Release Date
- 2009.12.11 filing date
- Related 2011-123334
Example 1
- f =- 124.47mm
- = 1.95 magnification
Example 9
- f =- 251.89mm
- = 1.80 magnification
- Rear attachment lens
- Master a longer focal length
- Smaller than the front converter
- Because of the negative refractive power and degrade the curvature
- Without a diaphragm
- Beam passes through the upper and lower
- Can not compensate for the aberrations caused by light passing through the off-axis
- Magnification chromatic aberration only expanded
- Correcting the axial chromatic aberration in the most object side lens group, to compensate for inadequate performance of the chromatic aberration and curvature of the most image-side lens group
- Diffractive optics (DO lens = Diffractive Optics)
- For example, the material is UV cured resin, wavelength 530nm design degree
- Diffraction efficiency decreases at wavelengths other than orders for the design and will not require light fraction decreased, causing a flare
- Transmittance is reduced when used in multiple locations
Patent Technology
- Positive refractive power as a whole, group 4 consists
- Applicable to telephoto and telephoto zoom
- Share in compensating the chromatic aberration of magnification and lens and the next most image side lens
- Multi-layer diffractive optical element
- Than 95% diffraction efficiency across the visible light
Source [EG]
thanks Evgenii
cr
Official Press Release
HOYA Corporation (“HOYA”) and Ricoh Company, Ltd. (“Ricoh”) hereby announce that pursuant to decisions by the President and CEO of HOYA and Representative Director of Ricoh, respectively, HOYA and Ricoh have executed an agreement as of today to transfer HOYA’s PENTAX Imaging Systems Business (the business of developing, manufacturing and selling optical instruments such as digital cameras and replacement lenses, digital camera accessories, security camera-related products, and binoculars) (the “PENTAX Imaging Systems Business”) to Ricoh. HOYA will effectuate this transfer by incorporating a new corporation (“NewCo”), cause NewCo to succeed the PENTAX Imaging Systems Business by way of a corporate split (kyushu bunkatsu) (the “Corporate Split”), and transfer all shares of NewCo to Ricoh (such split and transfer shall be referred to as the “Split/Transfer”) as of October 1, 2011 (Estimated).
Prior to the Split/Transfer, HOYA intends to transfer its interests in PENTAX VN CO., Ltd., an overseas subsidiary of HOYA in relation to the PENTAX Imaging Systems Business, to NewCo.
Please note, that since the Corporate Split is a simplified corporate split (kan-i kyushu bunkatsu), disclosure items/content have been partially abbreviated.
Further, HOYA will continue to develop its businesses assigned from PENTAX Corporation which was merged (kyushu gappei) into HOYA on March 31, 2008 other than the PENTAX Imaging Systems Business, such as its businesses regarding digital camera modules, DVD pickup lenses, endoscopes, artificial bones, and voice synthesis.
HOYA merged (kyushu gappei) with PENTAX Corporation on March 31, 2008, and has developed the PENTAX Imaging Systems Business assigned from PENTAX Corporation until now. As part of selecting and focusing its management resources, HOYA has decided to cause NewCo to succeed the PENTAX Imaging Systems Business via the Corporate Split, transfer the business and shares, etc. of HOYA’s Imaging Systems business subsidiary to NewCo via a business transfer and share/interests transfer, and thereafter, transfer all shares of NewCo to Ricoh.
Ricoh’s core business is office solutions focusing on MFPs, Ricoh has also introduced many cameras to the market since its inception in 1936. Ricoh was one of the first manufacturers to launch digital cameras in 1995 and Ricoh’s current high-end compact digital cameras are well regarded in the industry.
Now Ricoh aims to establish a consumer business. As a first step to achieve this goal, Ricoh strengthens its camera businesses. Ricoh takes it as an indispensable initiative to obtain the small and lightweight interchangeable lens camera technology, lens technology and sales channels held by the Pentax Imaging Systems Division to pave the way for further advancement and innovations in the digital camera market.
Through this acquisition, Ricoh plans to 1) enhance its digital camera businesses (especially the interchangeable lens camera market which is expected to grow), 2) create value-added businesses for taken photographs (creation and development of value-added services that encourage seeing, storing and refinishing photographs and utilize photographs as communication tools), and 3) expand to other fields (study of entry into the image archiving business using medium-format digital cameras and enhancement of security-related products)
Source [PR]
cr