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Search Forum: Posts Made By: jonsegar
Forum: Lenses 22-03-13, 07:59 AM
Replies: 3
Views: 324
Posted By jonsegar
Apologies

Sorry, I posted ij 'Macro' since that is what I was attempting to achieve, ie a close up image (using extension tubes). Why not use a macro lens? yes well I have the Canon 100 macro, but when the...
Forum: Lenses 16-03-13, 03:48 PM
Replies: 3
Views: 324
Posted By jonsegar
Canon 70-300 with tubes

I can find the closest focus distance with the 70-300 L - not the DO version (about 1.2 metres) from the spec, but I cannot find any info about what that distance would be with either a 12 or 25mm...
Forum: General photography discussion 01-07-12, 08:18 AM
Replies: 0
Views: 227
Posted By jonsegar
Digital Watermarking

Does anyone have experience of digital watermarking?
Forum: Beginner photography questions 13-01-12, 08:30 PM
Replies: 3
Views: 299
Posted By jonsegar
donor, It is an f8 Sanyang. jon

donor,

It is an f8 Sanyang.

jon
Forum: Beginner photography questions 11-01-12, 07:01 PM
Replies: 3
Views: 299
Posted By jonsegar
How do I tell it the lens is F8 ?

I have a Canon 400D. I know how to set aperture and speed in manual (with a canon lens attached).

I have borrowed a 500mm mirror lens, which does not communicate with the camera, so the aperture...
Forum: General photography discussion 17-08-10, 08:14 PM
Replies: 1
Views: 146
Posted By jonsegar
Compact with remote release

Guys,

I am trying to establish how many people are using the footpath next to my home. The best idea I can think of is to mount a compact camera and have it released via some sort of trigger,...
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