ISO 12233 resolution chart results have been added to the Tamron 24-70mm f/2.8 Di VC USD Lens Review
I have two of these lenses right now. Unfortunately, the first lens I received needs to go back.
After spending 10 hours or so completing testing the lens on the ISO chart, it became clear that the lens was not working properly at the longer focal lengths. Image quality was unacceptable at 70mm. Tamron confirmed that the results were not as they expected.
The second lens performs much better optically. These are the results now presented on the 24-70 VC review page.
Before making your purchase decision, I encourage you to wait for me to spend more time evaluating the Tamron 24-70mm f/2.8 Di VC USD Lens' AF performance. Neither of the two lenses I have autofocus accurately on the test chart using a Canon-calibrated EOS 1Ds Mark III
. I will minimally test the second lens behind a second calibrated 1Ds III and a 5D III.
Stay tuned for more information.
From Redrock Micro: Redrock Micro Launches New ultraCage & ultraBase for Video-Capable DSLR Cameras Awesome Additions Reflect New Generation of Support for a New Generation of Video-Enabled Cameras
Hollywood, CA and Dallas, TX – Redrock Micro, the recognized leader in affordable professional-level cinema accessories, today launched the new ultraCage DSLR and ultraBase support for video-enabled DSLR cameras. The ultraCage DSLR has been called an essential accessory for converting the DSLR camera body into a movie-making production powerhouse. Next Generation Support for the New Generation of Video DSLRs
Video DSLRs have arrived as legitimate filmmaking tools. Groundbreaking cameras like the Canon 5D MKIII and the new Nikon D800 deliver advanced movie features and outstanding results. However, the form factor of DSLRs severely limits the stability of shots and the ability to adapt accessories that are commonplace for high-quality filmmaking. Redrock products have evolved along with DSLRs and now offer the best solutions for shooting high quality movies with DSLR rigs. Professional-level Support and Stability
The ultraCage DSLR delivers rock-solid support and stability for DSLR cameras. The ultraCage secures the camera body at three points: screws into the camera base, fastens to the top hot shoe and locks the camera in place with the anti-rotation pin. The ultraCage supports a wide variety of DSLR bodies and has been tested with the Canon 60D, 7D, 5D MKII, 5D MKIII, and Nikon D800/ D800e camera bodies. You will not find a support cage anywhere that is more stable, functional or reliable.
The ultraCage DSLR adds industry-standard 15mm bottom rails for accessories such as a mattebox, follow focus or lens support. The built-in 15mm top rail support is great for adding accessories you want to keep with your camera on every setup, such as camera-top monitors or remote focus motors.
The cage surrounds the camera with 22 mounting holes (standard 1/4" and 3/8") that are perfect for attaching and positioning virtually any other accessory available. The ultra Series of accessories from Redrock can extend the ultraCage with extended top and bottom rails, triple the mounting points and additional mounting plates for advanced accessories such as external batteries, external recorders, audio units and remote focusing.
In addition, the powerPack Universal accessory delivers a powered cage option so all camera-top accessories and the camera itself can be powered from a single, long-lasting source using an external battery.
The ultraCage DSLR and ultraBase are ideal for the following types of users:
- Professionals using DSLRs for filmmaking
- Enthusiasts looking to get better results from video DSLRs
- Amateurs who want something they can start simple with and grow
- Steadicam, riggers, camera/jib operators needing rock-solid support and stability
- Anyone looking for better support for their video DSLR
Slim, Contoured Design Molds to DSLR Body, Adds Features Without Bulking Up
Unlike other offerings, the ultraCage curves with the camera's contours and doesn't make it any larger than absolutely necessary. All doors and features are completely accessible, and the cage is unobtrusive enough to stay on the camera even when shooting stills. The precision-machined aluminum housing and available carbon fiber rods keep things light without sacrificing strength.
The Foundation for Any Shooting Style, from Handheld to Studio
The ultraCage DSLR can be used to create any type of rig, from handheld to full studio. Redrock offers pre-built bundles for handheld, shouldermount, and studio setups based on the original ultraCage. Using Redrock's family of 400+ cinema accessories and building blocks, virtually any rig can be created to fit your shooting style and budget. With the ultraCage DSLR, your camera can now take advantage of Redrock's ultra Series of advanced support accessories for sleek, sophisticated camera setups.
The ultraCage DSLR Advantage
The Redrock ultraCage DSLR and ultraBase are the only professional-level camera support to deliver all these key advantages:
- Superior support and stability for DSLR cameras
- Form-fitting and lightweight contoured design promotes small, fast shooting style
- Top & bottom 15mm rails and 22 mounting points for accessories
- Retains access to all DSLR buttons and doors
- wireLock protects and converts HDMI output to full size HDMI supported connector
- Cage provides 360 degrees of protection for your DSLR
- Build any rig you want with Redrock's family of ultra Series and cinema accessories
- Can be used for handheld, studio or rigging, and can fast-change between setups.
- Confidence in gear that comes with lifetime warranty and is made in the USA.
- Incredibly affordable professional-level gear - starting at $595.
For More Information
Product details can be found on the ultraCage DSLR and ultraBase at store.redrockmicro.com/Catalog/ultraCageHandheldRigs/ultraCage-DSLR
Pricing and Availability
ultraCage DSLR and ultraBase are shipping starting mid-May, and are available from Redrock direct at store.redrockmicro.com and from authorized Redrock Micro resellers worldwide. ultraBase starts at $299, ultraCage DSLR starts at $595.
B&H carries Redrock Micro gear.
has the Manfrotto MB SSC3-1BB AGILE I Sling Bag (Black)
for $39.99 shipped (Compare at $51.16) as a Gold Box Lightning Deal (3 hours only). Check back
a bit later for deals on the AmazonBasics Wireless Remote Control for Nikon and Kingston Digital Secure Digital Class 10 Value Card.
(via known seller Beach Camera) has the Canon PowerShot G1 X
with a Fujifilm 4GB SDHC memory card, case and cleaning kit for only $729.00 shipped (must add to cart to see discounted price) (compare at $799.00+).
To celebrate Mother's Day, Canvas People is offering $50 off or a free 8x10 canvas
(just pay shipping).
As I've said before, the feedback from Canvas People print quality has been quite positive. And as I've also suggested before, great pictures of the kids make justifying new camera gear with the spouse an easier task. ;)