We made it to NANPA in Jacksonville, FL yesterday and got a great room overlooking the great cityscape! Upon opening the sliding door on the 17th floor, I noticed that there were slow moving clouds in very bright overcast. It became immediately apparent that this is a good long exposure situation! It was very bright, so I opted to stack my 5 and 10 stop Singh Ray MorSlo ND filters, giving me 15 stops of ND!
I shot a reference image to get the exposure and shutter speed. I entered the shutter speed into my LongTime app and at ISO100, it read that this was a 16 minute exposure! Being a little pressed for time, I needed to get it down to 4 minutes. So, I raised the ISO to 200 and the exposure time was cut in half to 8 minutes, which was still too long. Raising the ISO to ISO400, the exposure time was cut in half again to 4 minutes, which was my target exposure time.
We look forward to the next few days at the great NANPA summit, and then heading over the see Dr. Singh or Singh Ray filters and then…..if we can swing it….head to the Everglades for a couple of days before starting to head home.
FLASH! After a conversation with Mike Moats, it became clear that I have to blog more often, so I am committed to blogging every day, if possible. So, here’s to a new beginning!
REMINDER! One Day Seminar Event!
March 17, Digital Photography Software and Creativity Seminar in Essington, PA (just outside of Philly).
Thx for taking time to read the blog and we’ll see ya online!
Tony
Thx much, Chris! I’ll have a look when we get home!Thanks for sending the info!!
Great image Tony, oh btw wait till you see the new app for the iphone, sent you an email so you can see;)
Hey Mike!! Thanks for the swift kick, man!! Great time hanging out!
Looking forward to seeing more posts Tony, and fun hanging out with you and Susan.
Thanks a lot, Ray!!
Great image as usual Tony! I was waiting for this after seeing your iPhone captures on FB. Great explanation as well.
@ Roger. That’s my intent….
@ Nate: Well, because I guessed at 15 and it was much easier and faster to up the ISO than to recalculate with the 10. Plus, I don’t always raise the ISO, or raise only 1 stop. Besides the 10 stop only gave me 2 minutes. I’ll have to see what you’re doing when we see you next fall, but my absolute favorite calculation is using a 20 stop (2 10 stops stacked) on a 30 second base exposure = 1 year!
Tony, nice image but even nicer is your goal of daily blog posts. I always look forward to a daily visit here. Daily for you will be quite a challenge I think with your full schedule.
Hey there Tony- how bout this: why didn’t you just doff the 5 stop to get the time back down to a more feasible amount instead of the iso adjustments? Hmmm? Also: I can’t get those long exposure time calculators to work- tried LongTime and Long Exp, and they give me silly reading- always fall back on gut feelings for exposure time and it always works better. Any ideas? I’m using them right I swear! -Nate.