Sigma PC9. Heart Monitor. Making it easy to lose weight. Thanks to its Calorie Counter, ... more
the PC 9 is clearly the specialist for slim sporty lines. Another special feature is the Zone Indicator, which shows whether you are exercising within the ideal tr...
The special thing about PC9 is his zone indicator, which registers whether you are ... more
training in the desired pace. You can select from different health zones for fat burning, fitness zones for fitness optimization and power zones for increasing the outpu...
Sigma PC9. Heart Monitor. Making it easy to lose weight. Thanks to its Calorie Counter, ... more
the PC 9 is clearly the specialist for slim sporty lines. Another special feature is the Zone Indicator, which shows whether you are exercising within the ideal training zone. The 3 ....
Advantages: Image quality. Consistent aperture. Internal zoom/focusing. Build. Great with converter. Disadvantages: Needs a large (tall?) outfit bag. Quite heavy. Quite large.
.6 and EXCELLENT by the time you stop down to f/8. It stays this way until diffraction sets in (to be expected) at the two smallest apertures. This is perfectly normal however and the lens delivers quite amazing performance at this or indeed, any price level.
I have used (and tested) this lens with my SIGMA EX APO 1.4x converter and can vouch for the performance being virtually just as good with only the two smallest apertures being POOR. The rest of the range is great and is particularly so when used on APS-C sized sensor cameras where only the central 'sweet spot' of the image circle is utilised.
A truly great lens.
David Chamberlain ...
Advantages: Hugely versatile. Compact. Light. Inexpensive. High quality. Disadvantages: None!
Converters often get bad press. Perhaps they deserved it about 20 years ago but modern ones are really much better than those early models.
The Sigma EX 1.4x APO Converter is an excellent and extremely versatile little accessory capable of extending the range and usefulness of many lenses and in my opinion, a valuable and essential addition to the kit bag.
It is of EX designation which in Sigma terminology means 'Excellence' and indicates that it is considered to be within the top quality professional range of Sigma lens products. It has the familiar smooth black 'crinkle' finished associated with the EX range and both looks and feels very good quality. It is extremely compact and will take up very little room in the outfit bag. It would be churlish to leave it at home! I purchased my example over a year ago and it is now ...
Advantages: Good build quality and good value for money . Disadvantages: Sigma`s claims not met and a slow auto focus .
, Nikon and Pentax and it is priced roughly the same across the board, it will have been designed with Sigma in mind so it probably gives its best results when fitted to a Sigma unit but I tested it with Sigma and with Nikon units and I have to say there was little difference if any at all.
The lens has the option via a small switch on the side of being used in auto focus or manual focus which is great for serious macro shooting because all the macro photographers I know much prefer to focus manually to ensure they get the right focus and effect with every shot, some of the cheaper lenses do not offer this ability to change and therefore fall behind this lens.
SPECIFICATIONS:
Focal Length 50mm
Max Aperture f/2.8
Min Aperture f/45-f/32
Angle of view 46.8
Elements/groups 10/9
Min Focus 189mm (1:1)
Filter size ...
