Which of these Tilleys looks brighter or better? The X246 or the X246A, this is the question. I'm interested to know what your thoughts are?
The one that's nearer the camera! It's the inverse square law - Brightness = 1/d^2 where 'd' is the distance between the observer/camera and the lantern...
@David Shouksmith So is that the X246A or X246? as they are both near the camera, as I have taken from both sides.
I never participate in this kind of quiz, unless one lamp is completely buggered, because some people like “white” light and others like “warm” light... and most can’t discern which is brighter. Tony
Okay but the question is which do you like , what does it matter what other people think. I'm just seeing as I'm not sure either
Yes, the Mark I eyeball, isn't that good at determining light output - especially through a camera, image processing/manipulation software, transmission over 10,000 miles of internet, monitor screen, my eyesight, glasses and all the rest. You tell us...
@David Shouksmith I like your answer, but I can't tell as well, and I don't know how to inhance photos, I'm not that smart. I'm only good with my hands.
They both look bright to me, no joke. Not different enough for me to stick my neck out... Cheers Tony
Yep, exactly the same here, Tony - no significant difference that I can determine. Both good! They're brighter than a candle, not as bright as a thermo-nuclear explosion...
@David Shouksmith Ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha I hope not, or I Will be in alot of trouble.
Test conditions are not equal (only one has a reflector, different backgrounds and distances), so no fair comparison IMHO Nice pair of Tilleys!
Thats sounds like a photographers answer, I did earn my living as a Photographer for many years and when it came to working out exposures, 'light intensity' and the inverse square law were a common consideration particularly when using bellows and lens extensions for macro work. Martin
As already said; impossible to tell by a photo where they are positioned in totally different distances from the lens. It might perhaps have been fairly possible if you had placed them in the same distance each from the lens in a photo where both were seen, and they also were positioned equally far each from the centre of the picture. But since you only want to compare two light sources, I'd just use a grease spot photometer if I were you! Oldshool, but efficient : "a grease spot on a piece of paper becomes invisible when a light on each side of the paper illuminates the spot equally". Simplicity in a nutshell. You will get a true answer on which one of the two is the brightest, but nothing more. When I fiddled more with these lamps than I do today, I often used this method. Not for any other reason than that it sometimes was interesting to check it out. E.g. olive- or rape seed oil work. When the spot "disappear", you will see which lantern is the brightest by observing which one is farthest away from the piece of paper in between. Here's one article you can read to see what I mean, or just Google grease-spot photometer.
@Carlsson ..i have just tried your idea but my fingers must have had grease on them from the painting of the door..now i dont know what spot was meant to be the test one, so thanks a bunch... Talk about lamps and going round the twist... p.s. @Buggerlugs ..if i had to put money on it i would say the X246a..but i'm not a betting man as my luck ran out a while ago, so probably not much of a help?
You need to look at the lanterns over a hour see wether they lose brightness and over that time all you see is bright golf balls plus your eyes are sore from this brightness.
