I have a ‘new’ vintage lens from a camera system I didn’t know existed until recently. Back in the days of Instamatic film cameras, a smaller format of Instamatic was introduced: the 110 format. Whereas most cameras for this format were cheap and cheerful compact cameras, Pentax released an SLR camera with interchangeable lenses. You can get adaptors to fit these lenses to some mirrorless cameras.
Despite the format size of the 110 system being smaller than the APS-C (13 x 17mm for 110 compared to 15.6 x 23.5mm) the lens (at least the 24mm that I have) covers the sensor without noticeable vignetting. The lens has a fixed aperture of f2.8. In the photo pairs below the normal 110 format 24mm lens is on the left.
As for the processing experiments, I have made changes to the ‘Klimt’ effect of a couple of posts ago that gives some interesting colourisations to the photos. Here is a selection – they are all recent photos in our small garden in early spring. This comparison view of the garden, showing the vintage hand water pump, is with ‘Extra Kimt’ effect processing:


One thing I like about this lens is the ‘Bokeh’ when focussed on a nearby subject. This comparison, using a basket of spring flowers, is with normal ‘Kimt’ effect processing:


This shows the effect of the ‘Extra Klimt’ processing with the same original image:


This comparison view, of a garden urn ornament, is with ‘Extra Kimt’ effect processing:


This final image wasn’t taken in the garden but is a roadside view that shows quite well the ‘Bokeh’ of this lens:

This 110 system lens works better with some subjects that others. Likewise the Klimt and ‘Extra Klimt’ type of processing. I need more practice…