These numbers will depend on your camera capabilities/settings (such as ISO) and the lens you are using. Ken mentioned the light intensity was low. So ballpark he was probably using something like f8 or f11 for 1/25 to 1/40 seconds exposure.
@Fred Bruche
Yes, I know it depends on ISO (or, as I would say old-fashionedly, ASA), but I was thinking the f-number would have to be up around f11 to get the depth of field we see in the photo. . And of course, the higher the f-number the greater the exposure time, and for exposures of what you suggest, a tripod mount would be mandatory.
I have never really taken pen photography too seriously and like to take my pics hand-held ..... which of course is incompatible with quality.
I can see that it has gotten to the point in our contests that outstanding pics are a necessity.
It seems to me that a decent DSLR is now required, not just an iPad photo or a cell-phone photo.
I do have a good, fairly new DSLR with macro lens.
I used to do a lot of nature photography, years ago. . But with pens, you need to transition to artificial lighting and macro techniques which make things a lot different. . For quick documentary posts, finesse is not important, but for the contests it now is.