Search found 7 matches

by travelingman
Mon Aug 31, 2009 2:03 am
Forum: Lens Lore
Topic: Which zoom lens for a new APS-C user?
Replies: 30
Views: 12876

Re: Which zoom lens for a new APS-C user?

padvr wrote:Any opinions about the Sony 16-105 f/3.5-5.6 comparing to the other lenses?
I have the 16-105mm and the CZ 16-80mm. The CZ is going to be sold! At wide focal length and wide aperture, it simply misses focus too often. I don't have that problem with the 16-105.
by travelingman
Sun May 17, 2009 6:00 am
Forum: Lens Lore
Topic: CZ1680 would not lock focus at infinity
Replies: 4
Views: 2260

Re: CZ1680 would not lock focus at infinity

I've had this sort of thing twice. once on my A200 (kitlens I think) after a lot of hunting between very close AF points it stopped working and never locked focus. then a few weks ago on my A700 with my 70-300G the same thing happened. i'm pretty sure removing and reinstalling the lens with power o...
by travelingman
Sun May 17, 2009 5:56 am
Forum: Lens Lore
Topic: CZ1680 would not lock focus at infinity
Replies: 4
Views: 2260

Re: CZ1680 would not lock focus at infinity

Are you sure you had the correct focus point selected? The one time I had a similar issue I'd knocked the focus selector from centre, to a point over flat sky. That is certainly a possibility because this moring I noticed that somehow I did have the focus mode changed from spot to local. However, I...
by travelingman
Sun May 17, 2009 4:07 am
Forum: Lens Lore
Topic: CZ1680 would not lock focus at infinity
Replies: 4
Views: 2260

CZ1680 would not lock focus at infinity

A few days ago while on a trip, I had a few moments to shoot a few snapshots from a scenic overlook with my CZ1680 and new a700. Everything was fine, but then I started having trouble getting focus to lock at the long end of the zoom and at long distances. There was enough contrast (bridges and buil...
by travelingman
Sun Mar 01, 2009 6:32 pm
Forum: Lens Lore
Topic: 16-80cz and 70-200G
Replies: 16
Views: 6833

Re: 16-80cz and 70-200G

I have now tested a number of different cameras and my findings are that autofocus just does not work with wide angles. If it looks sharp, it is luck. Nothing more. The depth of field is so great that the AF setting is almost random. You are better off setting the lens by guessing and using the foc...
by travelingman
Sun Mar 01, 2009 1:53 am
Forum: Lens Lore
Topic: 16-80cz and 70-200G
Replies: 16
Views: 6833

Re: 16-80cz and 70-200G

Here is how to check your 16-80mm: Set the camera to MF, and study the focus confirmation light in the finder, while focusing on some targets at 16mm. See how much RANGE there is, during which the light is on. Note the range down from the focus scale. Now try autofocusing on the same target and see...
by travelingman
Sat Feb 28, 2009 10:44 pm
Forum: Lens Lore
Topic: 16-80cz and 70-200G
Replies: 16
Views: 6833

Re: 16-80cz and 70-200G

That was Philip's decision. We have a 16-80mm and 70-300mm - but Shirley prefers to travel and shoot light, one lens if possible. So we bought Philip's 18-250mm - it's fine in the sort of conditions we normally shoot (sunny, daytime). I did try it on the A350 and felt it was not quite good enough. ...