I recently purchased the FD-M42 Filter Drawer and an ASI533MC camera and today I started building my dark and flat's library. I know the 533MC shouldn't need the dark's but I wanted to run through the process. I've found a problem though, there's a bunch of light coming in through the filter drawer. I have re-seated it a few times and still I'm getting some light leakage shown in the ASIAir preview with the histogram stretched. I just wrapped some gaffer's tape around the filter drawer to "fix" it. Is there something else I can do or is this a limitation of filter drawers in general?
Any suggestions would be welcome. Thanks.