How safe is safe enough? If we have airbags, do we really need seat belts as well? Nomex suit? Roll cage? Helmet? How far do we need to go to protect ourselves?
For me, I am willing to assume that 2nd-3rd generation 64GB SD cards are just as reliable as 3rd-4th generation 32GB cards as 4th-5th generation 16GB cards etc. So once the initial production of a new bigger better faster card has passed, I don’t get too concerned about card failure. But still, maybe someday just possibly it might happen. On the other hand, changing cards on a rainy windy day on the beachfront or next to a jungle waterfall or aboard a racing yacht creates its own potential for problems not only with the card but also with the camera. So, to avoid opening up the camera in inclement conditions, I judge “required” capacity by # of images rather than GB. I usually have two cameras and alternate shots. Long ago one body had color print, the other B&W or color slides. More recently the one body had a wider lens, the other had a longer lens. Now the two bodies I am using yield a somewhat different look and feel, but I’ve still tended to use one for wider shots, the other for longer shots. The key though is that by using two bodies, even if I have a card failure I have not lost everything from that time period. With my K-3 I use 32GB cards which provides a nominal capacity of about 560 images plus that many more on the 2nd card. So I can usually get through a day on one card and the 32GB in the 2nd card slot gives me a 100% margin. With the 645z I have a 64GB in the first slot which gives a nominal capacity of 600 images, plus 250-300 nominal on the 32GB in the second slot. So again I can get through a day on one card with a 50% margin with the 2nd card. If/when I get a camera with larger files (or if I find myself shooting drastically more frames per day) I will move on up to larger cards as needed to keep me in that range of one-days-worth of images-per-card. If I were shooting professionally (= many more shots per day, also = higher cost of losing the images on a card), I would probably opt to stay with this same card-capacity and accept the need to occasionally change cards in the middle of the day. stan On Apr 8, 2015, at 2:11 AM, Steve Cottrell <[email protected]> wrote: > John > > Be wary of very large card capacity. Shooting professionally, would > never go above 16 or 32 GB cards - they can go wrong! > > I'm away shooting video for a week on a sailing yacht and will be taking > a series of 16GB cards with me, probably get through one a day I'm guessing. > > YMMV > > > -- > > > Cheers, > Cotty > > > ___/\__ Broadcast, Corporate, > || (O) | Web Video Production > ---------- <www.seeingeye.tv> > _____________________________ > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
