Recent content by wiltw

Which would folks find to be more desireable to look at when you are 80 and reminiscing? an imperfectly posed and illuminated photo of your father and mother captured when they were in their 80's, white haired and wrinkled a perfectly posed and illuminated AI rendering of your father and...

ASSUMING that the slave unit in use has those settings! Many optical slaves existed prior to the invention of digital cameras and the need for their version of flash automation.

+1 Any 'preflash' makes optical slaving fail...the 'preflash' happens BEFORE the shutter actually opens, which is the problem. Preflash is what happens with any digital camera nTTL, as well as during redeye reduction or focus assist.

IF the flash is a digital TTL flash, the camera first asks for a fractional output preflash for the camera flashmeter to measure, so it can send at predetermined amount of light request to the flash to output when the shutter actually opens...and in this case the typical handheld flash meter...

Different manufacturers put different materials on the baseplate platform that the camera sits on, and these have varying degrees of success in keeping the camera from twisting on the plate. One way that twist can be virtually eliminated is when the plate has an upturned lip that rests against...

Yes, if your ambient light was rather dim, changing the shutter speed should NOT alter the aperture display after metering flash...all of the light from the flash is output in a relatively short period of time (e.g. 1/1000 sec.) so the aperture should not be any different, if the ambient light...

Consider first that, when using studio flash, they typically have a recycle time from full power output of 1-2 sec (the higher power ones have the longer recycle). So if you could fire a flash 5 times per second at 1/5 power, it would fully expend all of the power stored in its capacitor in 1...

Shorter, so somewhat lighter, but certainly not cheaper!

OP mention of "... but they don’t like not being used often, capacitors etc fail or they become unreliable"... This is due to the fact that capacitors which store electricity before sending it to the flashtube can be prone to degrading when they do not regularly get used. Flash manufacturers...

Not 'forgotten' ...entirely different issue than optical mag vs. digital pixel reduction to same effective magnification, and zooming in to chimp the result. But I see all these 'here are some photos taken with wonderful (new camera X), and the forum only suppots 1600 x 1600 pixel files in the...

The debate about optical magnification with some IQ loss vs. digital crop could be one of the endless "It depends!" debates With digital cropping to achieve 1.4x magnification equavalent, you are throwing away 29.6% of the frame (1/1.4 = .714) If you use a good teleconvertor, we know (from...

A teleconverter essentially magnifies...everything, including the optical shortcomings inherent to the lens design! Some lenses show off their shortcomings more with a teleconvertor attached than others...the earlier Canon 100-400 was an example of that. The later version is better in that...

A thyristor had no exposure automation capability...it merely re-routed unused electric charge so that the storage capacitor was not fully drained with every firing. It was a photosensor that told the flash 'enough light' that caused the thyristor to route the surplus electric charge back to...

Different brands of rechargeable lithium ion batteries will ALL have the same battery lifetimes! It is a known fact that lithium ion batteries ALL begin to lose capacity from the day they are made...CHEMISTRY at work, nothing more, nothing less. So if you replace a Dyson with another brand, and...

I have Kodacolor negs from back in 1962 (I was 12!) and I can assure you that there was no defect evident in scanning. and from about 1964