Yes, I am now the proud owner of a brand new DF and IQ180 system. A bit apprehensive for sure, do not know if I have bitten off more than I can chew. I love the images I am getting out of it so it is probably all worth it. It does have somewhat of a learning curve and I wonder if I am missing something.
Last night was doing some night photography with long exposures. Noticed that the longer the exposure, the longer it took for the camera to write to the CF card. Initially I thought it was my card (Sandisk Extreme Pro 32G), so today I ran some tests at home with my Lexar 1000X 32G, which is the fastest card I own.
Regardless or ISO or f-stop, the longer the exposure is, the longer the IQ takes to write to the card. I used MLUP and self timer (tried without it too), and as soon as the exposure is done and and shutter closes, the IQ starts to write to either the buffer or the CF - the green light keeps blinking and then a while later the red light comes on with a beep and the image now appears on the LCD. During this process, I can see through the viewfinder and change settings on the DF, but cannot fire the shutter.
My times for the writing process are agonizingly long. Here is what I found.
exp time 30 seconds, writing time 34 seconds
exp time 20 seconds, writing time 21 seconds
exp time 10 seconds, writing time 10 seconds
exp time 5 seconds, writing time 5 seconds.
Otherwise the writing time is almost nothing, i.e. less than a second. So if the shutter speed is say 1/250, the image is completed in about a second in total and I can take another picture right away. If the shutter speed is 10 seconds, the total image time (without self timer) is over 20 seconds before I can take the next image.
Something is not right and I do not know what it is. The files are all the same size (around 80MB) so it must be the buffer somehow.