September 2nd, 2015
October 8th, 2014
Tamron is taking aim at high-resolution DSLRs and mirrorless cameras with a revamped SP series of full frame prime lenses in 35mm and 45mm focal lengths.
In debuting the new SP series, Tamron is breaking a bit with prime lens convention by offering image stabilization–up to 3 stops for the 35mm lens and 3.5 stops for the 45mm, per CIPA standards. They’ve also pushed the close focusing capabilities of the news lenses. The 35mm lens can focus on objects up to 7.9 inches away while the 45mm lens can focus as close as 11.4 inches.
The new lenses are fast, with f/1.8 apertures (stopping down to f/16) and in the sample images we saw from the lenses’ official unveiling in New York, they look to offer excellent corner-to-corner sharpness with no vignetting. The SP series will get some new esthetics (new logo, a new font for lens markings and a gold ring around the lens mount) but more importantly, a robust metal body that’s sealed against the weather.
Both SP primes offer circular aperture diaphragms, eBAND coating to reduce flare as well fluorine coating on the front lens to make them easier to clean. Both lenses will accept 67mm filters. Finally, the SP series lenses will have a larger window over the distance scales to make them easier to read (20 percent larger than prior models).
Both the SP 35mm f1.8 VC USD (F012) and SP 45mm f/1.8 VC USD (F013) will retail for $599 and ship by the end of September in either a Canon or Nikon mount. A Sony A-mount is coming down the road at an unspecified time. Like other models, the Sony mount version won’t offer VC as Sony handles stabilization in-camera. The lenses will come with six year warranties.
September 16th, 2014
The German software company Piccure+ is not one to mince words. Calling the prevailing lens making model “ignorant” the company has released lens correction software that it claims can correct lens defects without building a huge bank of profiles. The upshot, they claim, is that you can use inexpensive lenses and still create high quality images that look as if they were snapped through more expensive glass.
Piccure+ uses complex mathematical models to create a point-spread function for each image before applying a deconvolution to correct defects — much like the approach NASA took to fixing the Hubble Telescope’s optics. Among the virtues of this approach is that it can correct what lens profiles can’t, namely deviations in lens manufacturing.
Rather than work off what it thinks is wrong with the lens, Piccure+ tackles the optical defects directly in the RAW image file itself. (The software can also work with JPEG images but the company claims that the already-compressed JPEG files won’t benefit as much from its algorithmic massaging.) This means that it can also correct distortions and aberrations on images without EXIF data and for lenses that don’t have profiles in competitive software like Adobe’s Camera RAW.
In a blog post announcing the software’s release, the company ambitiously called for a rethink of the entire lens manufacturing paradigm. Rather than invest money in building flawless lenses, the company is arguing that much of the heavy lifting can be done in software. Specifically, their software (of course). Photographers would then be liberated to use less expensive zoom lenses while lens makers could focus on driving their own costs down by relenting on quality control — an argument we have trouble believing is going to find much traction among lens manufacturers.
We’ve just started playing with the software, which you can kick around for free for 14 days. From our initial impressions, it’s clearly easy to use, with a minimalist interface with sliders for optical aberration, sharpness and denoising. However both previewing and processing images on our 2.6GHz dual-core Mac (16GB of RAM) took a fair amount of time (evidently our Mac likes doing complicated math about as much as we do). You can save settings to make your workflow go a bit faster when working in a similar batch of images or you can tell the program (via a slider) to prioritize speed over quality.
Piccure+ will cost $109 and can work as a plugin for Lightroom or as a standalone application.
Nikon D610; 1/320 @ f/7.1 with 24-84mm Nikkor lens. Original image on left.
August 27th, 2013
Fast on the heels of Leica’s slew of camera unveilings, Zeiss has introduced a new prime lens for Leica M rangefinder cameras at Photokina 2014.
The Distagon T* f1/.4 35 ZM offers a 35mm focal length promising to perfectly match the view from the M’s optical viewfinder. The lens uses Zeiss’ T* coating to reduce flare and features 10 aperture blades.
The aperture can be adjusted in 1/3 increments via a ring on the lens. There’s also a focus ring on the lens’ all-metal barrel.
Zeiss says the lens will be due out before the end of the year for $2,290.
Ricoh Imaging Americas Corporation (the company formerly known as Pentax Ricoh) just announced five new prime lenses and two new weather-sealed flash units for Pentax DSLR Cameras.
Five New Prime Lenses
HD Pentax DA 70mm lens
The K-mount, HD Pentax DA Limited series lenses include a 15mm f/4 ED AL, 21mm f/3.2 AL, 35mm f/2.8 macro, 50mm f/2.8 and a 70mm f/2.4. Lens barrels, hoods and caps are constructed of high-grade aluminum and the glass is treated with an HD coating to help reduce flare and ghosting. (That little red anodized marking on the front of the focus ring indicates the lens is treated with the HD coating.) Additionally, each lens is designed with a rounded diaphragm to optimize bokeh. All lenses will be available in silver or black in September.
- 40mm f/2.8: $550
- 15mm f/4: $700
- 21mm f/3.2: $700
- 35mm f/2.8 macro: $750
- 70mm f/2.4: $750
Two New Weather-Sealed Flashes
Ricoh imaging also introduced two flash units for Pentax interchangeable lens cameras: the AF540F GZ II and the AF360F GZ II. Like the Pentax medium format 645D and some Pentax DSLRs, the flash units are weather-sealed. With the addition of an LED, the flash units can produce a constant source of light for video and stills. The LED can also be used to produce catchlights and as an AF assist light (with updated firmware on the 645D as well as most K-series DSLRs). Nine custom flash functions, wireless flash and a host of other features are available on both flashes. Powered by four AA batteries, the flash units will ship in September.
- AF360F GZ II: $430
- AF540F GZ II: $630