ChrisA

Joined: 4th January 2007

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ChrisA
gartmore wrote:
I have yet to carry out the paint scrape mod. Why/how does it work?
I'm not entirely sure.

There's no paint on the lens side of the tubes, though, so with the scrapes in place, the contact on the body can get all the way through to the lens.

What I don't understand at all, though, is why you'd need the scrape if there was already a seventh contact. There's no eighth contact on the body.

Comment by ChrisA posted on extension tubes at 05/09/2008 - 16:33

ChrisA
Unlocker wrote:
There does seem to be a lot of different versions of the Jessops tubes, mine cost £60 IIRC off ebay, but they do have all 7 electric contacts in place.
Now that's very interesting.

7 actual contacts, and the paint-scrape modification. Did it already have the latter, or did you do it?

Look at my Jessop tube - only 6 contacts, and the paint-scrape mod was needed for aperture information to get through.

[IMG]http://i162.photobucket.com/albums/t244/chris5gd/Technical/Imgp2649s-1.jpg[/IMG]

Comment by ChrisA posted on extension tubes at 05/09/2008 - 14:25

ChrisA
Dr. Mhuni wrote:
Re. the oversharpening - Using Picasa only gives very basic options and perhaps this accounts for the pics oversharpened state.
One application of the Picasa sharpening button usually results in a subtle and pleasing effect, two is always much too much, in my view.

I think your second version is much nicer.

Comment by ChrisA posted on Horizon detail at 05/09/2008 - 14:04

ChrisA
GivingTree wrote:
I guess I'll be the lone detractor here and say that this isn't one of my fave ocean shots. The lighting doesn't bother me - in fact it makes it look moonlit, if not for the wisp of cloud visible. It's the lack of context. There's nothing there that gives you a true feel for the power and immensity that is surely present. Yes, it's a roiling sea, but it fills so much of the frame that it loses something. There's a snip of a boat, but I feel that more of the boat would help with context. Or a shoreline, or more of that mountain in the background, or..... just something to relate it to.
Well said.

The light is good, the contrast with the sky is good. It has hints of interest - the boat, the mountainous shore.

But to me it still seems too much like a crop from something greater.

Comment by ChrisA posted on Sea at 04/09/2008 - 22:15

ChrisA
Don wrote:
Yeah, but is it fully compatible with the millions of viruses, adware, and spyware, written for windows?
If you're worried about these, Don, the question has to be asked, what sort of websites do you spend your time visiting?

Comment by ChrisA posted on Calibrating Monitors - Windows, Linux & Mac at 03/09/2008 - 16:41

ChrisA
George Lazarette wrote:
What I am saying is that there are two places to post images, and it would be better if there were one. Having two means those who peruse the forum don't see the gallery images, and vice-versa. Gallery images are less accessible, so some good images don't get seen, or don't get the comment they merit.
Not at all disputing this.

Quote:
If you were designing this site from scratch, I don't think you would incorporate a separate gallery. There just isn't much point in it.
I'd agree with this, too ... especially for those whose main purpose here is the forum.

The thing about galleries is that they take time to visit. It's nice to spend an afternoon at a gallery sometimes and look at lots of pictures but it's a very different pastime from what we're mostly engaged in here.

I suppose they're trying to cater for two populations - those that hang out in the forum and those that don't - and those that spend time in both lose out a bit.

Those that just want to see what people visiting the gallery say about their pictures can easily bookmark them and then find them again easily. FAIK there are lots of people that just browse the gallery without spending any time in the forum.

Comment by ChrisA posted on Problem with the gallery. at 03/09/2008 - 12:03

ChrisA
Not sure I entirely follow, George.

George Lazarette wrote:
The gallery (which I shall call gallery proper) is becoming more popular, and some good pictures are being posted there.

They get very little comment because gallery proper, unlike this section (also called "gallery"), is inaccessible. If you post a comment, you can't see if it has elicited a response without having to trawl through the gallery looking for it.

So gallery proper is depriving this section of good pictures, and depriving those who post to gallery proper of comments.

I agree up to here (although this section is called "Your Photos forum"), but now you start to lose me.

Quote:

Why not amalgamate gallery proper with this section?

We could upload directly to this section, without linking, and the search facility could be adapted to provide a set of thumbnails of all pictures posted here by whatever criteria one chooses.
The trouble with uploading to this section is that there will be those, like me, that have other online galleries, and post pictures elsewhere as well as sharing links with people.

Having to upload them here brings issues with duplication, external linking, and thence to bandwidth issues.

I like linking images here, precisely because it keeps everything in the (two - I'd rather not make it three) online galleries I use, and I can use them elsewhere easily.

Having a specific thread for a C&C picture is good since once it's no longer current it drops off the radar as it should.

Also, I'd be surprised if the dev team particularly like the idea of substantial changes to the search system.

So I'm not sure I see many benefits of such an amalgamation. But maybe I haven't understood you.

Quote:

Alternatively, just scrap gallery proper altogether. There's far too much in it, and some of the older stuff is mediocre anyway. Although I suppose it does have some value in showing how the advent of digital has raised standards. Much of the early film stuff is dire.
I tend to agree with this. Mostly I'm only interested in the recent stuff, anyway, and not often even that.

Comment by ChrisA posted on Problem with the gallery. at 03/09/2008 - 11:29

ChrisA
Dr. Mhuni wrote:
Posted this in another thread but I guess it got submerged - or other forum users aren't so bothered about the issue... I find it rather underwhelming on a Monday morning when a judge fails to provide any feedback on pictures. This week there wasn't even any commentary on the winner, never mind an indication of the runners up or constructive criticism and/or praise for the other pics. Isn't one of the purposes of the competition for forum users to get feedback on their photos? Might it be communicated to future judges that they are supposed to consider the merits and/or demerits of all entries in a written judgment?
This has been, and is being, discussed at some length on this thread.

Comment by ChrisA posted on Competition results 2 at 03/09/2008 - 07:16

ChrisA
George Lazarette wrote:
Distorting the tonal range, which is what HDR does, can't really be described as an improvement.
I certainly agree with this based on most of the HDR shots I've seen posted here.

But the tonal range you get from the camera is not itself undistorted, and anyone that uses Shadows/Highlights tool in PhotoShop will know that careful attention, particularly to the shadow areas, can make it look more the way the eye perceives it.

The brain/eye combination, of course, does its own HDR treatment of any scene it looks at - changing the aperture as it looks at differently lit areas, which allows the brain to form an HDR composite of the whole.

As sensor and in-camera software develops to both extend the tonal range of what gets detected, and then how it's output, as Don was saying, all this HDR messing will become even less desirable, and more of a novelty, like many of the PhotoShop filters already are.

Comment by ChrisA posted on Shots From Cadiz at 02/09/2008 - 12:58

ChrisA
Lilly wrote:
What is HSS please?
High Speed Sync.

When the exposure is shorter than the sync speed, the flash unit emits a burst of flashes during the exposure, so that as the narrowed gap between the shutter curtains travels down, each part of the frame gets lit.

This has practical use when you're using fill-in flash, and with the aperture you want, you need a shorter exposure for the ambient light than the camera's sync speed.

Comment by ChrisA posted on which flash gun to choose? at 02/09/2008 - 11:08

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