McGregNi

Joined: 31st March 2012

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McGregNi
Going back to Andrews 3 posted crops just above, I do think the 3rd one there is most realistic - that is quite bright light coming in the window afterall. So long as it tapers off to shadow fairly quickly from the window surrounds into the interior then that will work very well I think.

I have not been able to us use the computer with my photo software on for a couple of days, but I hope to be able to offer up a Photomatix version very soon now that I have your DNGs

Comment by McGregNi posted on Stained glass windows and HDR at 23/05/2014 - 18:53

McGregNi
MrB wrote:
McGregNi wrote:

....Why would the bright light through the glass suddenly drop so much once it hits the stone edge? It wouldn't, it would brighten the stone frame considerably, as in your HDR....
and

McGregNi wrote:

....Light levels from the glass shine through onto the stonework, progressively lessening as they fall further into the interior. They do not suddenly cut from near white to shadow (like Andrew's other version there)....
I'm not sure that your thoughts are correct here, Nigel. You are comparing two quite different effects. The light the camera receives from the window is transmitted light (it passes more or less straight through the glass to the camera). The light reaching the camera from the stonework is reflected light, and unpolished stone is not a particularly good reflector. This would result in a much greater light intensity from the former than from the latter, i.e. high contrast. Even though eyes are quite good at detecting differences, I think that the effect, if you had been there viewing at the distance that this shot was taken, would have been to make the even the stonework close to the glass look quite dark to your eyes.

Cheers.
Philip
I'm sorry this was missed Philip, when there are many photos being posted into a thread the pages jump on so fast as has happened here. I accept you point on the way that lighting reaches the camera sensor, ie coming from two different sources (direct & reflected) it will have a very different impact ... however, that 'effect' is simply yet another technical deficiency of the camera sensor, much like the dynamic range limit is - and as we are trying to compensate for these limitations I don't see that we should in fact want to reproduce it. I would be aiming to reproduce a 'what the eye sees' effect rather than any 'what the camera sees effect'.

Comment by McGregNi posted on Stained glass windows and HDR at 23/05/2014 - 18:51

McGregNi
The laughs just keep on coming Its a new direction for sure, and there are plenty more strangers in the area just waiting to be photographed, so keep an eye out for more pics on the theme.

Rest assured though that it is unlikely to detract me from my core pursuit of documenting the fields & hillsides of the Croydon/Surrey borders. Thanks again to all who have looked at the set and commented .... now, who mentioned grain on the wood? ... I really must find a plug-in to strip that out immediately!

Comment by McGregNi posted on Nigel's First Stranger Shots at 23/05/2014 - 18:36

McGregNi
Blythman wrote:
2 doesn't quite work. Looks like a lot of haloing which I know it won't be.
Did someone mention halos? Let me see ... ah yes, there it is on 'Gotham'. Or am I seeing things? Now where's gwing when ya need him!

Comment by McGregNi posted on Dr Orloff Or How I Stopped Worrying And Learned To Love The Converging Vertical at 23/05/2014 - 10:19

McGregNi
Well, I ensured I took a full cross section from the window display ... however, South Kensington is a rather well-to-do area

Comment by McGregNi posted on Nigel's First Stranger Shots at 23/05/2014 - 09:24

McGregNi
Good to see some low-key key building shots Doc, and all beautifully taken. Yes, converging verticals can work sometimes - the cranes is a classic example which makes them look like their having a private meeting!

Its all a bit doom & gloom, but effective no doubt. It works best where the highlight areas take up a smaller part of it. Where there's greater contrast across more of the frame the edges start to reveal themselves too harshly - better where the transitions are slow & smooth.

What approach to metering did you take? Was it spot on the highlights, or did you look for midtones and lower it from there?

Comment by McGregNi posted on Dr Orloff Or How I Stopped Worrying And Learned To Love The Converging Vertical at 23/05/2014 - 09:21

McGregNi
Smeggypants wrote:
... It's only in you opinion that HDT is the superior technique. At risk of repeating myself the windows themselves don't need any HDR processing. Neither does the stonework. They each, on their own, have a dynamic range that a DSLR is perfectly capable of fully capturing, but they just lie in totally different orders of magnitude of light levels.
Thats it, I claim exclusive rights to my own opinion

But lets be sure we're debating the same thing - I am not saying that there are not two independent 'exposures areas' here (inside and out). It is the blend zone that I'm questioning. If it were a landscape with darker ground and bright sky, then yes, a blending approach could work well with fairly simply masking and brush work along the horizon.

But the complexity of the transition zone between inside & out on this type of church image is where these techniques fall down, or become impossibly complex to control. That is why HDR is called for - a more sophisticated management of the blend, the natural transition of lighting levels from one to another. It all depends on the actual subject in question - there's no one size fits all solution.

Comment by McGregNi posted on Stained glass windows and HDR at 22/05/2014 - 23:36

McGregNi
MrB wrote:
Nigel, these are head and shoulders above any portrait shots of mine. Cheers.Philip
Nice one Philip! Shoulders? Yes. Heads? Maybe not I did face quite a conundrum though with focusing - really needed a bit of Cabstar's expert advice on where to focus in the absence of any eyebrows!

Comment by McGregNi posted on Nigel's First Stranger Shots at 22/05/2014 - 21:38

McGregNi
Some changes and clarity would help for sure - but hey, don't you think that David's thread here has had an effect? I notice quite a bit more 'sizzle' on the forum - lots of pictures to discuss and interesting subjects. There's plenty to get stuck in to ... the new HDR thread is a case in point. We just have to see if Andrews church interior can break my record of views and replies from the 'Riddlesdown' HDR debate .

But its a pity there are so many more viewers than commentators in matters like this. The issue of exposure, scene dynamic range, identifying key tones for reflected light metering, and ultimately making creative choices about your images presentation and best processing approach, are matters for all of us - something everyone can have an opinion on and experience to share ... or questions to ask.

Comment by McGregNi posted on What has happened? at 22/05/2014 - 21:08

McGregNi
andrewk wrote:
Where did that come from? Many folks find Lightroom to be adequate for 98% of their needs. I doubt that you can say that of any other photo editing software. Andrew
Its just a little in-house dig Andrew - its not to question anyone's choice if it works for them. I do like to provide some balance and offer up discussion on alternatives though.

Comment by McGregNi posted on Stained glass windows and HDR at 22/05/2014 - 20:31

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