Originally Posted by Ko.Fe.
28 Ultron f2 ain't small and have some reputation for focus shifts.
I hope this 35/2 will be better and with normal filter size.
Metal shtuck focus tab is less ergonomical as modern ones, but not going to get loose after plenty of use.
I only recently bought the 28 Ultron f2 and while it isn't as small as the tiny f4 25mm or f4 21mm it isn't a big lens. See attachments with and without the lens hood attached.