I ride a motorcycle. I used tyres that did not satisfy me completely. But I cannot carry out experiments since I only got one motorcycle, and need new tyres only every 10.000 km. So I ask my fellow riders what they think of the brand / type of tyres, and I get a lot of different answers. What bothers one person suits the other one perfectly, and vice versa.
However, I received enough info to figure out which tyres to buy that just might suit my personal riding style. I had them put on my motorcycle, and even though I have used that motorcycle for 120.000 km and thought I new it's limits and habits, I felt as if I rode it for the first time. I now only wish that these tyres had been available for all those years, and I had known about it. It is not an insignificant difference, it enourmous. To the layman, all tyres are round and black, so what can be so different between them? I assure you, there is a difference....
Same with this backfoucus thing. Before I found this website, I was not very happy with the colour tone and the sharpness of the images. For tone, I learned about custom curves, but for sharpness... I noticed that the focal plane and DOF my subjects (and as usual with every new gadget they are my wife and kids) where not where I expected it to be. I have used Nikons for 22 years, ranging from an FE through F3, F4, FM3a and Coolpix 995, and so I had plenty opportunity to get to know the matter. Wether or not that has made me a good photographer, is another issue, but I know that when you make a portrait, you focus on an eye, stop down to F8 or more to get the entire face / head into the DOF. With my new D70 this did not happen. The eye I focussed on, and everything in front of it, whas already out of the DOF. I used sharpening to copmpensate, and on an A4 print it looks good.
But it is a new medium, pixels and not film. I am still trying to get a grip on things, trying to figure out it's limits and capabilities. Is it DOF or just pixel blurr? Is this the typical sharpness of this kind of camera? I only have one camera, cannot compare, so I use the experience of all my fellow forum members to get to know this equipment.
What I do NOT want is, like the motorcycle tyres, is take 10.000 images and then figure out that a simple calibration would have given me more pleasing results without any extra effort
So I connected to the source that should know best, and all I asked is for them to tell me how I could "make sure" that this is or is not the case. With one questions asked in 22 years, I think I deserved a little more..... that's all.
T.
what they mean to say is:
if you have a backfocus problem send it in .. if you're not sure..
don't bother to check for a problem that doesn't bother you.
Same thing: if I work on somes pc I often notice small errors in
settings/functioning. I never start by saying there is an error,
but always ask if they experience problems. If they don't, I want
fix it.
In your case I'd say backfocus ..
so send it in!