This mini test has been done to try out a free (to me) 1980/1990’s mid range zoom and to test my assumption that only good quality prime lenses are up to the A7R’s 36MP sensor.
When zooms were being introduced into mainstream 35mm photography it was widely believed that they were grossly inferior to quality primes which put me off using them until partially moving to digital from film in around 2005. Are my old prejudices justified? I had to give it a test!
In its favour is its diminutive size and light weight. It’s not as small as any individual prime lens in the useful 28-70mm range, but it’s lighter than all three usually used in this range (28,50 and 85). The rear element disappears far into the lens barrel past 50mm which is slightly disconcerting and doesn’t fill me with confidence as it seems to be quite a primitive design. It does have a ‘red ring’ at the front which might appeal to ‘L’ series users – unfortunately it’s not a Canon lens.
Carrying just this lens on the camera and no camera bag is rather refreshing. It has a 1:5 macro mode so isn’t a macro lens at all but the close up mode is reached by rotating the zoom ring past 70mm, and it’s better than nothing!
It’s not a very fast lens – unsurprising given it’s size – but if sharpness rather than spectacular bokeh is your goal you probably won’t move the aperture ring far away from an optimal f8 so it’s no real problem. The aperture is made up of 6 blades giving hexagonal out of focus highlights, the filter size is 52mm and it’s nicely made and satisfyingly compact and dense. The ‘SD’ bit of the name stands for ‘Super Low Dispersion’ lens elements used in the lens to reduce chromatic aberration. We’ll see!
In use it’s controls are nicely balanced and although it doesn’t exude the quality feel of a prime Zuiko lens (oops – Zuikoholic prejudice coming out there!).
Starting with macro – it’s quite useful when wandering around for casual close ups but not for exacting macro work.
Quite pleasing and fun for macro work all in all. The focus aids on the A7R as always managed to nail focus hand held.
Generally it seems like a reasonably sharp and contrasty lens :-
Onto the acid test then and Kingston Lacy house used as a test subject, all at f8 so as good as this lens is going to get :-
28mm whole frame
50mm whole frame
70mm whole frame
The centres at all focal lengths are ‘good’ to ‘very good’, but the edges of the frame are a bit of a let down. Even at f8 it would take a lot of work to sort these out in post processing.
In conclusion then I’d say it’s a nice, portable lens which does a basic job of covering the 28-70mm focal length range. The edge definition lets it down badly, but the contrast makes up for some of the shortcomings. The A7R is flattering to older lenses based on previous experience, but I’m afraid that the convenience of carrying just a zoom lens doesn’t quite balance out the loss of quality at the edges of the frame so this lens won’t be used again.
Looks like my prejudices were correct based on this lens – the A7R needs the best prime lenses at their optimal aperture to make the most of it’s sensor. Maybe using the ‘crop mode’ to sample just a central APS-C sized portion of the sensor would work, but life – as they say – is too short!
I can’t complain too much – though – this lens was ‘free’!
Thanks for looking – hope this was useful.
If you’re interested in using other MF lenses have a look at the other reviews on the film, camera and lens review index tab.