Seadiver5 once bubbled...
I have to agree with the Digital options for $ savings on a beginner basis. While I don't personally use a digital camera the initial cost of a digital camera with housing is relatively inexpensive when compared to the cost of a low end camera and film and processing.
I agree that there's some benefits to be had in immediacy of feedback, and film processing costs, and while these are good things particularly for beginners they ultimately need to be weighed against other elements within the digital/film trade-off.
Digital cameras could be used without supplementary lights/strobes but the colors are no where near as good.
You can be into a digital setup for under $500.00 if you look around and or buy used.
Agreed. The problem here is that while Digital appears generally more tolerant of lowlight situations, red wavelength absorption is a phyiscal reality, and you can't capture what's not there. As such, for those applications where a "good strobe" is necessary, you're not going to be able to buy any system (film or digital) for only ~$500, because this is roughly the cost for just the "good strobe"!
And we must also apply similar pragmatism when making our end-to-end comparisons. For example, people will correctly point out that the Nikkor 15mm lens for the Nikonos costs around $2000, whereas a wide-angle adaptor for a digicam might be $200. This is technically true, but there are profound differences in the optical quality between the two that do not make this a fair comparison because even if we're not aware of it, there are less expensive alternatives.
For this specific example, if you're willing to live with the optical compromises of an adaptor lens, you can get a WA adaptor lens that fits over the Nikkor 35mm lens for around $250 (FYI, it is made by Sea&Sea, and it is in addition to their ~$900 15mm prime lens that's also an aternative to the Nikkor 15mm).
One of the best things about the digital revoloution is that due to the ease of using digital cameras and the "better initial results" the excitement for underwater photography doesent wane like it does in so many cases with people who try Film first.
True, although I personally believe that much of the real impediment here is that fewer people today really know the fundamentals of photography.
Now before you accuse me of saying that this is an attitude of "REAL" photographer chauvenism, please let me explain:
One of the wonderful things that has happened in photography over the past ~2 decades are advancements in automatic exposure. This has allowed a lot of people to get good quality images with minimal knowledge of the underlying principles: they merely push the button and the computerized system does the work.
The problem is that the UW environment isn't particularly compatible with these automated systems that were originally designed for land photography. Digital has minimized this problem to a degree, but the net result result remains that blind trust in the equipment without knowledge as to what its really doing will result in a drop in yield when the equipment is used beyond its envelope of competency. Its the photographer who has the fundamentals who is able to compensate and minimize the loss in yield.
Those who don't follow the natural course: when you have too many failures while trying to do something (not just photography), the natural human tendency is to lose interest in what we often call "exercises in futility".
FWIW, the lack of a strobe arm on many inexpensive cameras is the perfect system to produce maximum backscatter, which really only exasperates this problem of poor performance creating disinterest.
The problem exists in both film and digital, but it is less pronounced in digital, because the per-shot cost is lower, and because its more immediate feedback provides a better opportunity to recognize and learn from basic mistakes and get out of the "rut" sooner.
Thus said, I do have to comment that over the past ~2 years, I've seen a lot more lousy UW photo's that came from digital systems than from film. Much of this is merely people who haven't learned the self-critical discipine to strongly cull their shots before letting the rest of the world see them...its been said that the difference between an amateur and a pro is merely the size of their garbage can
FWIW, I don't let anyone else see roughly 90% of the photo's I shoot, regardless of how much I shoot, land or UW. And when I shoot digital, this ratio doesn't change (if anything, my reject rate should increase).
-hh