Hi Guys & Greetings to all Seniors,
I just picked up a 15mm Fisheye lens by SIGMA, and I seek instructions, advise, and or recommendations as to how I may mount the internal filter at back end of this lens, and where can I get these sort of filter. ( ? )
According to the manual which comes with it, there appear to be a small square metal plate, with a hole at one corner, which the manual simply says for mounting the filter. That's informative indeed.
It's right at the backend of the lens's element, and it gives me the jitters thinking of bringing my grubby fingers near there.
Any pointers from anyone of you experienced shutterbugs in here will be most appreciated.