abqnmusa wrote:
This is an image with the 7D & 400mm F5.6
The jackrabbits are quite fast and not easy to follow with a 400mm lens on a 1.6 crop camera
This was shot with auto ISO - 7D seems to maintain a bit over 1 / focal length with Auto ISO
I wish you could adjust a custom function for auto ISO at 1 /focal length, + 1 shutter speed, +2 shutter speed, etc
But all in all, auto ISO is a nice feature none the less
I ran into the same issue with the 5D2/400 5.6L combination, and hit on this "solution": shoot shutter priority instead of aperture priority. With the 400 5.6L, it's extremely sharp at f/5.6 and f/6.3, so you don't have to worry about the camera opening up the aperture (and costing sharpness) before bumping the ISO to maintain shutter speed.
For bird shooting, I set the 5D2 on Tv (1/1250 in most cases) with Auto ISO, and the camera generally shot everything at 5.6 or 6.3 and bumped the ISO to meet the shutter speed until it couldn't, at which point it starts to lower the shutter speed to maintain proper exposure.
I probably wouldn't do this with, say, the 300 F4L IS, as it isn't at its sharpest wide open, but with the 400 5.6, there isn't any real penalty.
Hi,
I agree about Liveview. Softer and much slower to focus.
Mogur2
CMpixels wrote:
Another one just messing around last night in the back of the shop. I took this using Liveview on a tripod with a 2 sec timer, but it doesn't seem as sharp as shooting normally. Maybe its just me but all my Liveview images seem softer.
Finally got a little sun today and went to the local bird sanctuary and goofed around a little. One reason I wanted the 7D was to have more AF points for BIF, etc. These four shots were taken in a row (not burst) and I used Zone AF - center cluster.
Note: I messed up a bit because I was doing some high ISO bird testing for someone else and I left it on ISO 1600 for these. I was just a test only. What I found was it locked on very quickly (had the Ai Servo Tracking Sensitivity on fast) and it held on well even in a slightly overcast sky. Very easy to track. In other testa when there was a busy background it had tendencies to jump to that and back to the bird.
So if you are shooting birds in the Sky Zone AF works real well. If junk will be in the way decrease AF sensitivity or what I will do is use center point only.
The bird is small but it shows what they will look like when I get more in the frame. This was as close as they would come to me today but they are all in focus even when it dropped down. I have a 100% crop of the first image to show the focus. All four look good.
300L F4 IS, 5/6, 1/8000. Sharpening only and DFine on last image.
A couple of you have mentioned you think your images are a bit soft when using Live View. I'm curious. Do you have a hypothesis as to why this would be?
I can only think of the focus being a reason for this, but I thought the contrast detect focus in LV was supposed to be very accurate.
Or, were you using "Quick Mode" where the mirror drops and you use the phase-detect AF mode?
EDIT: By the way, forgot to mention: Nice Squirrel
What amazes me is that there is such demand and interest in a 1.6 crop camera. I remember a few years back when we all thought they were going away. It's a good thing to have choices.
fotografur wrote:
What amazes me is that there is such demand and interest in a 1.6 crop camera. I remember a few years back when we all thought they were going away. It's a good thing to have choices.
I'm just saying. I use and love my crop canon
d~
I was one of the biggest proponents of the 5D when it came out. Still am a full-frame user, but I just snagged one of these 7D's and I'm really liking it. It'll take a while to get used to it, as the output is different and takes a different approach to process, but the speed and flexibility of the 7D is excellent.
Since we're looking at squirrels (or at least one), this little guy was wandering around the woods behind my house. Couldn't get any closer, but I managed to get a few shots of him while I still had light. 300 f/2.8 IS & 2X teleconverter, ISO 1000:
fotografur wrote:
What amazes me is that there is such demand and interest in a 1.6 crop camera. I remember a few years back when we all thought they were going away. It's a good thing to have choices.
I'm just saying. I use and love my crop canon
d~
If you notice, most are telephoto photogs. At least that is why I purchased one. Otherwise, for studio and indoor work, events, weddings, etc... I go with my 5D and 5D2 every time. The 7D and 1D3 are my sports/wildlife bodies...(well at this point, the 1D3 is...until I get a fully functioning 7D).
