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Showing results 101 to 116 of 116
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Search: Posts Made By: petrochemist
Forum: Macro Photography Technique 29-12-10, 12:07
Replies: 15
Views: 78,831
Posted By petrochemist
I hadn't thought of that - With the lens removed...

I hadn't thought of that - With the lens removed the bright portion of the dot would be of the order of 1mm diameter.
I guess with the lens in place it could get rather dispersed, but should be...
Forum: The Photography Forum 25-12-10, 22:40
Replies: 4
Views: 11,534
Posted By petrochemist
There are of course ways to reduce the minimum...

There are of course ways to reduce the minimum focus distance of a lens, adding a suitable lens in front (either a close up filter or a reversed prime) or adding some form of extension between the...
Forum: Macro Photography Technique 23-12-10, 12:38
Replies: 15
Views: 78,831
Posted By petrochemist
One thought that might help with aligning your...

One thought that might help with aligning your subjects.

If you get hold on a cheap laser (I've seen them for a couple of quid at boot sales) & can engineer a mount for it to replace your camera...
Forum: General Photography Technique 23-12-10, 11:47
Replies: 27
Views: 139,118
Posted By petrochemist
I generally try to compose in camera as much as...

I generally try to compose in camera as much as possible, but I'm not adverse to cropping to improve the image afterwards (sometimes even going a bit far for my 6MP camera, to remove distractions...
Forum: The Photography Forum 17-12-10, 19:08
Replies: 21
Views: 30,854
Posted By petrochemist
Sorry to hear of your back, Craig. Playing...

Sorry to hear of your back, Craig.
Playing around with macro should be another possibility. I've seen some impressive shots of salt crystals (especially on CDs), and even just coins can keep you...
Forum: General Photography Technique 12-12-10, 21:08
Replies: 22
Views: 49,199
Posted By petrochemist
Hey Duncan I've got one almost identical to that...

Hey Duncan I've got one almost identical to that but in landcape form. :D

With the 920nm I think I get more of a dark purple... (but still disparately needs PP). I think the only way to avoid PP...
Forum: Cameras 12-12-10, 13:17
Replies: 80
Views: 142,639
Posted By petrochemist
Mine (just completed on fleebay) is a proper...

Mine (just completed on fleebay) is a proper Pentax viewfinder magnifier. My budget right angle one needs refocusing when zoomed which rather defeats the purpose.

Getting a newer Pentax DSLR (for...
Forum: General Photography Technique 26-11-10, 23:06
Replies: 17
Views: 25,525
Posted By petrochemist
FIVE? Some people never learn! :D:D ...

FIVE? Some people never learn! :D:D

Strangely enough, it's only since having the children that I've had the chance to take 5 minutes. My wife now has to stay behind with the kids when I'm working...
Forum: Cameras 26-11-10, 21:45
Replies: 3
Views: 7,895
Posted By petrochemist
OK Karl, welcome to the forum, and here's my take...

OK Karl, welcome to the forum, and here's my take on things.

The right camera for you will depend very much on what you want to use it for, as well as unmeasurable things like how it feels in your...
Forum: General Photography Technique 26-11-10, 20:07
Replies: 17
Views: 25,525
Posted By petrochemist
Unhappy I guess my landscapes have generally missed out...

I guess my landscapes have generally missed out on the first two of these :(
Some of my favorites from film days involved pulling the car over to the side of the road, getting out, snap, and back in...
Forum: Macro Photography Technique 26-11-10, 19:40
Replies: 119
Views: 217,564
Posted By petrochemist
eyepiece mounting

Well I'm afraid my 'workshops' is much less sophisticated than yours from the little I've seen. So I cheated horribly - I got a T2 helicoid focuser from scopes n skies (in their 'astroboot') for £12,...
Forum: Macro Photography Technique 25-11-10, 23:47
Replies: 119
Views: 217,564
Posted By petrochemist
lens stacking etc.

What a fascinating thread - I think it's worth another Bump :)

I've played with macro quite a bit over the years and collected loads of different options, (though my shots are not up to the...
Forum: Photography Books & Magazines 25-11-10, 13:22
Replies: 32
Views: 130,756
Posted By petrochemist
As well as several of the internet sources...

As well as several of the internet sources metioned above I've always thought browsing the local library to be an excellent start.
Many beginers books are very basic, and once you've read/understood...
Forum: The Photography Forum 25-11-10, 13:09
Replies: 21
Views: 28,137
Posted By petrochemist
I'm very much an amauter with limited resources...

I'm very much an amauter with limited resources so my veiwpoint will be different than John's.
I've never had a camera fall off any of my ultra budget tripods - but they're not stable enough for any...
Forum: The Photography Forum 25-11-10, 12:19
Replies: 11
Views: 13,674
Posted By petrochemist
As a newbie (joined last night) I've already had...

As a newbie (joined last night) I've already had comments form Mo on the pictures I've posted. From these I can see that (perhaps unusually for very prolific posters) Mo's comments are useful,...
Forum: The Photography Forum 25-11-10, 12:09
Replies: 9
Views: 20,554
Posted By petrochemist
There are specialist narrowband filters to remove...

There are specialist narrowband filters to remove sodium light (as used in many street lights) sold for astronomy, but they would be hideously expensive in a size suitable for mounting on standard...
Showing results 101 to 116 of 116

 
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