Hello CR Friends
Here are some photos that I have taken in recent weeks with my 50mm STM. That is, these images were taken in challenging lighting, using quite bright apertures. Aperture between f/2.2 and f/2.8. After all – who buys a bright normal prime to exclusively take photos stopped down…….? Anyone? ???
As I have written here on CR in another post – I obtained my 50mm STM here in Adelaide, Australia - at a great price a few months ago. I was the first person to buy this lens from that bricks-and-mortar camera shop – this being the largest specialist photography store here. I have bought quite a few items from them over the years, and the salesman gave me a good deal for that reason. In my previous post about the 50mm STM, I listed the pros I really like about this lens: great image capability from f/2.5 onwards, AF being fast, silent, accurate and consistent, appreciated decent close MFD, build quality good, smoother bokeh, etc.
Over a number of years, I owned two copies of the 50mm f/1.8 II. The first copy had a front focus issue – and I found the AF be plagued with inconsistency and inaccuracy issues. I exchanged that lens for another (back when I lived in Europe). The second did not have the same front focus issue, but AF was still inconsistent and inaccurate – on both my 350D and 7D. So I sold that lens some years back.
Anyway, on to the photos. The photos I am sharing here are ones that I think turned out ‘all right’. I was asked to take photos at my sister-in-law’s 40th birthday the other weekend… it was in a very low light environment (indoors, on a cloudy winter day). I also am including a few photos of my step-children at home and outside, that I took a few weeks earlier (those photos are some of the first images I took with this lens).
So one thing I am happy about is that I believe these are decent photos that are there to relive / share happy memories. Additionally, what also makes me smile is that I would have been
unable to obtain these images with the 50mm f/1.8 II lens on either of my Canon DSLRs with any great predictability. The reason is that, like many others, I found the 50mm f/1.8 II’s AF to be inaccurate and inconsistent. Ok… so I would occasionally get a stunning photo at apertures between f/1.8 and f/3.5 – but it often involved an element of ‘luck’- i.e. that the lens actually decided to ‘get it right’ – rather than I used other prime lenses in AF mode – e.g. the Canon 100mm macro f/2.8 USM and the Canon 85mm f/1.8 – and both these lenses had both more consistent and more accurate AF than the 50mm f/1.8 II.
However since my purchase of the STM version shooting with a 50mm prime has been a much more pleasant, fun and enjoyable experience.

I am really happy with the 50mm f/1.8 STM’s AF – it is quicker (and much quieter) – but most importantly even in low light or with low contrast situations – it does a much better job of AF. I applaud Canon for making this very affordable 50mm which can gives great images from f/2.5 onwards. I really like the 50mm FoV on my APS-C cameras, being similar to a 80mm focal length on a 35mm format camera body.
Has anyone else had the same experience with the recently released 50mm STM? That is - finding the improved usability of the 50mm STM (particularly in terms of AF ability over the 50mm f1.8 II) – to now open up new realms of fun and possibilities? Please share your thoughts, experiences, feedback – and any reflections on what I have written here.
Please feel free to post / share / upload your photos to this thread… I would also be very interested to hear other user experiences from those who have owned the 50mm f/1.4 “USM” (which is not true ring type USM… with its AF known to break!) I look forward to Canon potentially producing another 50mm prime (e.g. potentially a non-L, 50mm f/1.4 - f/2 USM lens - possibly with IS... now THAT would be great!) 8) But that's another story and shall be told another time!
Looking forward to reading the responses! Thanks in advance.
Paul