Photoclub Alpha

Our cover photo for the Spring 2008 issue of Photoworld was taken with a Tamron 70-300mm zoom costing less than £120 from most larger retailers or internet shops. The reputation of the lens meant we had to take a look at it, because the current choice in the Sony range is limited to one ‘kit’ 75-300mm costing £179, and the new 70-300mm G SSM lens costing £600.

Today I took delivery of a Sony 70-300mm f/4.5-5.6 G SSM lens. There is no doubt this is the best built Sony SAL lens I’ve handled (the CZ 135mm 1.8, 85mm f1.4 are a class above again). It weighs over 800g with its lens-hood, which is one of the most efficient deep tele hoods I’ve seen.

The Sony DSLR A200 is now on sale, following the end of Alpha 100 production. Although it is without any doubt the Alpha 100 replacement mentioned by Sony executives in October 2007, when they first revealed that the 100 was no longer being made, it is not an exact equivalent and represents a mixture of upgraded performance and simplified specification. Because it has gone in two directions at the same time, the A200 poses a problem for A100 owners.

It’s the same on every web forum - if you post a digital picture which would be acceptable to a photo library or professional buyer, half a dozen grumpy one-liners will come out saying ‘That don’t look sharp to me’ or ‘there must be something wrong with your XXX’ (fill in D300, A700, E-3, D3, 40D as required). Then someone posts a hugely messed up image and people say ‘Wow! What sharpness!’…

HAODA FU has been supplying alternative focusing screens for the 5D and A100 since 2006 and for many other makes before this. While the Alpha system DSLRs are not intended to have user-changeable screens, it is relatively easy and risk-free.

THE NEW Tamron 18-250mm has some importance to Alpha system users. It is almost certainly the optical basis for the forthcoming Sony SAL 18-250mm version, and as a APS-C 13.7X zoom with an equivalent 27-375mm (in full frame terms) range is uniquely suited to the SSS-enabled Dynax 5D, 7D and Sony Alpha 100