Nikon 28mm f1.8G - Preview

Nikon 28mm f1.8G - Preview
















Nikon Nikkor 28mm 1.8G f1.8 wide angle prime announced preview depth of field DOF, Nikon, Nikon AF-S Nikkor 50mm 1:1.4G review, Nikon AF-S Nikkor 70-200mm 1:2.8G ED VR II, Nikon 1 series, Canon and Nikon,

Mosaic Engineering working on Nikon D800 anti-moire filter

Mosaic Engineering working on Nikon D800 anti-moire filter
Tuesday, 10 April, 2012 20:06

Good news for Nikon D800 owners. Mosaic Engineering are currently working on anti-aliasing filter for the camera. Because the sensor line-skips to produce HD video, the custom-designed optical low pass filter should almost eliminate any moire and aliasing on the D800 if it works as well as it did on the Canon 5D Mark II.

Here’s David Cubanski of Mosaic Engineering:

We’ve got a design now for an anti-aliasing filter for the D800, and the component parts have been made already.  We should be doing the coatings and assembling it this week, and perhaps be in a position to test it in a real D800 within a week or so.  Very excited, by the way, to see this begin to work, as I expect that it will, and then to optimize it into a final manufacturable design.

It will be very interesting to compare the D800 WITH an optical low pass filter and the 5D Mark III without one! They may even meet in the middle.

Yesterday I removed the OLPF from my 5D Mark III, and will have a blog post on that soon along with the footage (if it stops raining… it is April in the UK after all!)

Source: http://www.eoshd.com/content/7809/mosaic-engineering-working-on-nikon-d800-anti-moire-filter

Nikon AF-S Nikkor 50mm 1:1.4G review

Nikon AF-S Nikkor 50mm 1:1.4G review

June 2009 | By Andy Westlake


The AF-S Nikkor 50mm F1.4 G is Nikon's latest take on the classic 'standard lens' concept, and was introduced in September 2008. It's a replacement for the older AF-Nikkor 50mm F1.4D which we reviewed last year, with revised optics to better meet the demands of modern high-resolution full frame sensors. The optical formula is an updated version of the classic 'double Gauss' design, with an additional element placed towards the rear to give an 8 element, 7 group configuration. According to Nikon, this improves correction of off-axis aberrations, which promises better performance towards the edges of the frame particularly when using large apertures.

The AF-S designation indicates that the lens features a built-in 'Silent Wave' motor for fast and quiet autofocusing, which also provides full compatibility with Nikon's entry-level DSLR bodies such as the D60 and D5000. A further benefit afforded by this ring-type motor is the 'manual priority autofocus' mode, which allows the user to adjust focus manually after autofocusing. There's also a circular aperture design which employs 9 rounded blades, for a more natural rendition of out-of-focus backgrounds.

Of course all these improvements over the older lens come at a price, and the AF-S 50mm F1.4G is significantly more expensive than its predecessor. It also has to compete with the other new kid on the block - the impressive (if slightly more costly) Sigma 50mm F1.4 EX DG HSM. So lets find out how it compares to these two lenses, and whether it's worth your hard-earned dollars.

Headline features

50mm focal length; fast F1.4 maximum aperture
Silent Wave Motor allows autofocusing on all Nikon DSLRs
Full-time manual focus override

Angle of view

The pictures below illustrate the angles of view on FX (35mm full frame) and DX camera bodies:

50mm (FX 35mm full-frame)

50mm (DX; 75mm equivalent)

Nikon AF-S Nikkor 50mm 1:1.4G specifications

Street price	• $485 US • £300 UK
Date introduced	September 2008
Maximum format size	35mm full frame
Focal length	50mm
35mm equivalent focal length (APS-C)	75mm
Diagonal Angle of view (FF)	46º
Diagonal Angle of view (APS-C)	31º 30'
Maximum aperture	F1.4
Minimum aperture	F16
Lens Construction	8 elements / 7 groups
Number of diaphragm blades	9 (rounded)
Minimum focus	0.45m
Maximum magnification	0.15x
AF motor type	• Ring-type SWM • Full-time manual focus
Focus method	Unit
Image stabilization	• None
Filter thread	• 58mm • Does not rotate on focus
Supplied accessories	• Front and rear caps • Lens Hood HB-47 • CL-1013 Lens Pouch
Weight	290g (10.2 oz)
Dimensions	73.5mm diameter x 54.2mm length (2.9 x 2.1 in)
Lens Mount	Nikon F only

* Supplied accessories may differ in each country or area

Foreword / notes

If you're new to digital photography you may wish to read some of our Digital Photography Glossary before diving into this article (it may help you understand some of the terms used).

Conclusion / recommendation / ratings are based on the opinion of the author, we recommend that you read the entire review before making any decision. Images which can be viewed at a larger size have a small magnifying glass icon in the bottom right corner of them, click to display a larger image in a new window.

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Dpreview use calibrated monitors at the PC normal gamma 2.2, this means that on our monitors we can make out the difference between all of the grayscale blocks below. We recommend to make the most of this review you should be able to see the difference (at least) between X,Y and Z and ideally also A, B and C.


Article copy from DPreview.com
All Images From DPreview.com
By M.Usman Arshad