Thanks again everyone for commenting on my photos.
Of course my curiosity has to know why you shot at 400 not 500mm? Can you get them as sharp wide open? I'm thinking it would be F5.6 at 400? If your the original owner Sigma should calibrate it for free minus shipping. Especially if you show them you are at -20 to get these shots.
Kris,
For the past few days I've become more and more dissatisfied with this lens. So I decided two days ago to play around with the AF fine tune. I basically picked a spot on one of my feeders and started shooting it. I ran through a lot of tests and variations. I came up with a -20 AF fine tune and determined that I could probably fine tune a little more but, that's all the camera will allow. So then I went and started to search online for information on what I could do to further correct this and get crisper images. The reoccurring themes, were to not shoot at 500 (the lens is outstanding at 400), and shoot at f9.
I to be honest have been frustrated with the quality of images that the lens has been producing and so I really didn't vary from the recommendations that I found. To be blunt I just needed a GOOD DAY. I usually excel at whatever I do(not that I choose the most difficult hobbies) and I just haven't been able to get a solid grasp on photography. I hate to fail.
Anyway, now that I know it can produce crisp images, I do plan on working my way back out to 500mm and f(whatever) just to see where I can push the limits of the lens to.
I also spoke with Sigma and they will take the lens in for free. My only concern with that is that they would like me to also send in my camera with the lens so that they can essentially marry them. I'm not sure how I feel about throwing my camera in the mail. That makes me a little uneasy.
To the group (Kris, Charlie, Scott)
You guys do bring up excellent points about the full frame cameras and where they would lack from a birding standpoint. My plan was/is to first invest in glass. (70-200 2.8 vrii, and something similar to what charlie was saying 300 f4) That investment is going to take some time. Especially if my wife and I have a baby soon.(trying) So the way I'm looking at it, by the time I can buy a full frame I'm hoping that Nikon comes out with a reasonably priced camera that gives a higher fps than the d800 or d600. I don't know if that will happen but, either way it never hurts to buy quality glass. The other thing for me is that I have to expand past birding. I have plenty of room for improvement when it comes to photographing birds but, I would like to be a little more broad than just birds. My crown jewel would be to capture a bald eagle but, I don't have any good locations with which I can get close enough to them around here. All the locations where they hang out are on private property and if I try and walk the bank they spot me and fly off. I have spent whole weekends tracking them this past summer and this is as close as I can get.
Eagle sample by
Shefjr, on Flickr
So I figure I enjoy nature and want to expand and improve on my landscapes, light painting, and night photography. Which means I guess that even if Nikon doesn't design something with faster fps, I can still use a full frame to capture some of my other anticipated hobbies and the fast glass will also work great on the d7k (which I will keep).
Of course, when we have a baby that could all change.
Thanks for the comments everybody! I now feel like there is pressure to produce images to that level or better. lol! Yikes! You guys as always challenge me and give me things to consider that to be honest, I never even thought of. :hail:
BTW,
Charlie Damn! that 100% crop is impressive and really makes me want to run to full frame and also grab the 70-200.
Scott, I have a 2X TC and it's garbage. It's not a Nikon though. When I first started out I thought I could buy everything on the cheap and that I would get just as good results. I hope I learned my lesson.
Sorry about the book I just wrote.:lmao: