Nikon DSLR forum

This site requires new users to accept that a small amount of member data is captured and held in an attempt to reduce spammers and to manage users. This site also uses cookies to ensure ease of use. In order to comply with new DPR regulations you are required to agree/disagree with this process. If you do not agree then please email the Admins using info@nikondslr.uk after requesting a new account. Thank you.

Moderated by: chrisbet,

Page: 1 2

My latest acquisition - Page 2

Rate Topic

Author	Post

Posted: Sat Jul 17th, 2021 17:28

11^th Post

Joined:	Sun Apr 1st, 2012
Location:	Carthew, Cornwall, United Kingdom
Posts:	6993
Status:	Offline

I think that there are several issues in-play here.
1. Questions about why an AF camera misses focus
2. Is manual focus more accurate than camera AF
3. How good are your eyes? As we get older our reflexes get slower so what we used to be able to do is not so rapid. How much will differ between people.

I think the first item is about expectation.
Do you expect your camera to nail perfect focus every time? I dong think this is realistic but it should be better than you 95% of the time.
It is also dependent on your subject. A black cat in a coal cellar with a single 25w light bulb will definitely challenge most/all camera systems.
The difference in mode of working between Phase Detection and Contrast Difference AF systems will also make a difference. As will maximum aperture of the lens used.

The second item. That is about how good your eyesight is and whether or not you can see small changes of focus. There are several aids such a split image and microprism screens in DSLRs but in mirrorless this is not so possible and the aids provided are good but not perfect.

The third aspect is something that is difficult to assess as we all have changing eyesight as we get older but it is a complex set of factors on play.

In short I dont offer a solution only awareness of compromises.
I think AF works well for me most of the time but not always! Sometimes I miss focus and sometimes the camera chooses a slightly different point to focus on than I thought I chose! User error or camera error results in missed focus.

____________________
Still learning after all these years!
https://nikondslr.uk/gallery_view.php?user=2&folderid=none

Posted: Sat Jul 17th, 2021 23:33

12^th Post

novicius

Joined:	Sun Aug 12th, 2012
Location:	Copenhagen, Denmark
Posts:	449
Status:	Online

Nice Pristine looking find, Congrats Chris ...I`ve never gotten along with the split-prism. it is the micro-prism for me , and altho` I`ve got all of the Slr`s on standby ( incl. a Konica autoreflex T ) , I can n`t use `em `cause I have n`t got diopter lenses and I can n`t use spectacles to peer thru` the finder...adjustable diopter on the Dslr` s is something I really appreciate.

____________________
Back in Danmark

I do not use my equipment to make photo`s .. I take photo`s to use my equipment

The better I become at photography,the better my camera gets.

Posted: Sun Jul 18th, 2021 08:36

13^th Post

Eric

Joined:	Wed Apr 18th, 2012
Location:	United Kingdom
Posts:	4583
Status:	Offline

jk wrote:
I think that there are several issues in-play here.
1. Questions about why an AF camera misses focus
2. Is manual focus more accurate than camera AF
3. How good are your eyes? As we get older our reflexes get slower so what we used to be able to do is not so rapid. How much will differ between people.

I think the first item is about expectation.
Do you expect your camera to nail perfect focus every time? I dong think this is realistic but it should be better than you 95% of the time.
It is also dependent on your subject. A black cat in a coal cellar with a single 25w light bulb will definitely challenge most/all camera systems.
The difference in mode of working between Phase Detection and Contrast Difference AF systems will also make a difference. As will maximum aperture of the lens used.

The second item. That is about how good your eyesight is and whether or not you can see small changes of focus. There are several aids such a split image and microprism screens in DSLRs but in mirrorless this is not so possible and the aids provided are good but not perfect.

The third aspect is something that is difficult to assess as we all have changing eyesight as we get older but it is a complex set of factors on play.

In short I dont offer a solution only awareness of compromises.
I think AF works well for me most of the time but not always! Sometimes I miss focus and sometimes the camera chooses a slightly different point to focus on than I thought I chose! User error or camera error results in missed focus.
The eyesight is a very good point. My wife's diopter setting on her Panasonic was waaaaay out for my eyes. So when she asked me to take a photo with her camera, I framed the fuzzy picture with the fuzzy focus spot over the fuzzy object and let the autofocus take a non fuzzy photo.

Of course knowing the aperture and it's depth of field on the sensor size you have, distance of the subject and focal length can help.

____________________
Eric

1st new

This is topic ID = 1924 Current time is 04:22	Page: 1 2
Nikon DSLR Forums > Camera and Lens Forums > Cameras > My latest acquisition	Top
Users viewing this topic