Hi,I've been severely tempted by this lens since it was anounced, but since I do a lot of IR photography (on a full spectrum camera) would often want to use a filter.
I know it's not intended for filters, but if a 52mm filter was held tight against the front of the lens, would it vignette badly?
From the lens photos (& 140° FOV) it looks like I might just get a way with it. Could anyone confirm please?
WooHoo! No Hot Spots on an IR converted E-M5:
Surprisingly, on the IR body, I can only use the closest focus setting...mid range & infinity setting are OoF in the IR wavelengths. Closest setting is actually quite good...everthing pretty sharp beyonw about 1 foot or so. Note that this shot was a horizontal pan so background shows some blur...but held steady, it's pretty great.
Regarding your thought to stick a 720nm filter to the front...I think it could work. The focus lever is pointing down, not out in front of the lens body. I have such a filter and will see if I can hook it up without putting the glass at risk of scratching...can try some IR with my non-converted EM1. Have to wait a few days...we're in a rainy stretch here now...Good to hear, the focus shift isn't suprising though does seem a bit extreme.