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Search: Posts Made By: petrochemist
Forum: Photography Books & Magazines 11-01-21, 12:46
Replies: 1
Views: 3,170
Posted By petrochemist
I've used that site occasionally in the past for...

I've used that site occasionally in the past for much older cameras. I couldn't find exactly the right model for my 4x5 camera, but they had ones which were certainly close enough. And there have...
Forum: The Photography Forum 30-11-20, 09:19
Replies: 4
Views: 2,173
Posted By petrochemist
If I was in charge of them you'd have the sun...

If I was in charge of them you'd have the sun moving all over the place at weekends, setting in the north at lunchtime from one viewpoint then setting again 20 degrees over 10 minutes later...
While...
Forum: Cameras 03-11-20, 14:14
Replies: 12
Views: 11,313
Posted By petrochemist
It also depends on what your subject is & what...

It also depends on what your subject is & what lens you have available. For small birds I'd generally need more than I have (along with better focusing/sharper optics).

If I don't have to crop the...
Forum: General Photography Technique 20-08-20, 15:02
Replies: 1
Views: 7,332
Posted By petrochemist
You can do it photoshop but there are speciality...

You can do it photoshop but there are speciality packages written specially for this sort of thing. I think Registax & deep sky stacker are the favourites for astro purposes - and both probably have...
Forum: Lenses 20-08-20, 12:56
Replies: 3
Views: 13,684
Posted By petrochemist
The push pull zooms I've met have all been manual...

The push pull zooms I've met have all been manual focus & most of them wouldn't sell now for anything like $150!
You list the lens as AF & f/2.8 which do put it in a different bracket :)

Which...
Forum: Lenses 09-02-19, 14:35
Replies: 17
Views: 22,167
Posted By petrochemist
Yes mirrorless has helped a huge amount. My...

Yes mirrorless has helped a huge amount. My Celestron telescope cant focus to infinity with a DSLR in prime focus mode. With a mirrorless its easy :) I've never tried my DSLR on my Helios 1000mm...
Forum: News & Views from the World of Photography 16-01-19, 22:37
Replies: 13
Views: 25,665
Posted By petrochemist
I don't see anything significant there over the...

I don't see anything significant there over the old NEX6 I recently brought. Yes it's better but I shoot adapted lenses so AF is irrelevant, I don't shoot video, the extra MP is probably wasted, so...
Forum: Lenses 27-12-18, 12:45
Replies: 17
Views: 22,167
Posted By petrochemist
Although the thread is nearly ten years old, I...

Although the thread is nearly ten years old, I think it only fair to point out this is actually the case for all lenses at the more distant end of the focus scale. Adjusting focus from distant stars...
Forum: Computers and The Internet 16-12-18, 11:56
Replies: 1
Views: 5,725
Posted By petrochemist
I can't imagine an ISP ever cutting of customers...

I can't imagine an ISP ever cutting of customers for not replying in a day. this has SCAM written over it in letters so big I'd find it difficult to read the whole rest! It may be worth mentioning...
Forum: The Photography Forum 08-11-18, 22:38
Replies: 9
Views: 9,278
Posted By petrochemist
I wouldn't dream of keeping the only copy I have...

I wouldn't dream of keeping the only copy I have of images on-line. I have deleted ~200 images from my Flickr stream to bring it under 1000. It's taken me 7 years of using flickr as my main sharing...
Forum: News & Views from the World of Photography 14-09-18, 23:09
Replies: 3
Views: 6,061
Posted By petrochemist
Far too expensive for me. And for reasons...

Far too expensive for me.
And for reasons unknown to me they STILL don't have IBIS :)

In a few more generations it might be worthwhile - but to be honest I don't buy the FF hype a smaller system...
Forum: News & Views from the World of Photography 28-07-18, 07:39
Replies: 6
Views: 8,407
Posted By petrochemist
The devil didn't cooperate, after weeks of clear...

The devil didn't cooperate, after weeks of clear skies the entire event was eclipsed by a storm.
Forum: News & Views from the World of Photography 20-07-18, 20:44
Replies: 6
Views: 8,407
Posted By petrochemist
Sorry can't stand him! But I could perhaps watch...

Sorry can't stand him! But I could perhaps watch his wife. :) The moon will be totally eclipsed when it rises here, but at least it's at a sociable time & still has a while to go. Shooting a normal...
Forum: General Photography Technique 23-04-18, 18:26
Replies: 2
Views: 7,114
Posted By petrochemist
I doubt there are many photographers alive who...

I doubt there are many photographers alive who have used the wet colloidal process. It's not very user friendly (photos had to be developed almost immediately) & IIRC other processes had pretty much...
Forum: The Photography Forum 25-03-18, 11:30
Replies: 6
Views: 3,292
Posted By petrochemist
I'm very familiar with that issue at events!...

I'm very familiar with that issue at events! Generally having another exhibit in shot isn't too bad as long as it's compatible, but all too often this isn't the case anyway. Members of the public...
Forum: Cameras 23-03-18, 20:35
Replies: 11
Views: 10,461
Posted By petrochemist
Although I have a couple of video (only) cameras...

Although I have a couple of video (only) cameras I've never used either of them. I have used video on several of my DSLR/mirrorless cameras - but probably totaling less than 10 minutes for those....
Forum: Photography Books & Magazines 23-03-18, 20:21
Replies: 6
Views: 8,785
Posted By petrochemist
It's just as well really there's only a limited...

It's just as well really there's only a limited space in the house for keeping old magazines. I've made a point of downloading some very old photographic magazines from archive.org. At least...
Forum: Macro Photography Technique 21-10-17, 22:38
Replies: 6
Views: 19,075
Posted By petrochemist
I've always though manual focus was the only way...

I've always though manual focus was the only way to do macro. I don't necessarily use the minimum focus distance (on some of my setups that would be touching the lens) but final focus is always by...
Forum: News & Views from the World of Photography 11-09-17, 23:04
Replies: 2
Views: 8,976
Posted By petrochemist
There are plenty of LED ringlights available for...

There are plenty of LED ringlights available for macro - not with the flash, but I rarely find that necessary with macro. A standard flash at macro distances will over expose most macro shots even on...
Forum: Flash Photography Technique 09-07-17, 10:41
Replies: 6
Views: 49,178
Posted By petrochemist
Sounds like a challenge. I've seen DIY versions...

Sounds like a challenge.
I've seen DIY versions of the 'better beamer' flash extended that might suit the job. Basically a large Fresnel lens, on a reflective cone. The distance & focal length of...
Forum: The Digital Darkroom 10-06-16, 08:14
Replies: 8
Views: 6,083
Posted By petrochemist
FastStone is my preferred general editing tool,...

FastStone is my preferred general editing tool, with Niks, Microsoft ICE (Panoramic stitching) & CombineZP (focus stacking) to expand it for less routine operations. All are now free :)
Forum: News & Views from the World of Photography 01-04-16, 17:56
Replies: 6
Views: 10,969
Posted By petrochemist
The different Niks parts can be called as an...

The different Niks parts can be called as an external editors, from most editing software. I now have them all linked to FastStone :)
I've heard you can also drag a file onto the executable to have...
Forum: The Photography Forum 01-01-16, 12:20
Replies: 6
Views: 4,720
Posted By petrochemist
For macro I generally find A4 paper is fine...

For macro I generally find A4 paper is fine (available in a huge range of colours) A3 is more than adequate if you want a bit more.

Spring clamps are fine for holding it to any support.
Forum: News & Views from the World of Photography 21-12-15, 18:54
Replies: 12
Views: 13,820
Posted By petrochemist
I believe it was Duncan who pointed me at the...

I believe it was Duncan who pointed me at the forum too, but I was well behind you in joining!
Forum: The Photography Forum 10-10-15, 10:57
Replies: 4
Views: 6,975
Posted By petrochemist
Not wrong, Wayne but I'm afraid we're too slow to...

Not wrong, Wayne but I'm afraid we're too slow to give the tips in time. WPF is not a high volume forum but it has some real gems :) I'm suspect any tips would have assumed you had a working tripod,...
Showing results 1 to 25 of 114

 
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