jptonks wrote:
Hello all,
I am nearing retirement and have decided to get more serious about my photography hobby. I am a serious amateur who has been dabbling in photography for many years. I have been shooting a Nikon D90 since 2009 with the kit 18-105, 3.5-5.6 lens. I am ready to upgrade.
I have been saving for this upgrade for a long time and now have a budget of $5,000. However, spending less than that amount would certainly be acceptable. What is more important is that I end up with the right camera/lens system that works for me without buying more technology than my skill level can utilize. I recently began my post processing career with Photoshop Elements. I may want to enlarge a photo from time to time to a "hang it on the wall" size, but nothing outrageous.
I am primarily a landscape (80%), car show(15%), air show (5%) shooter. My primary goals with this purchase are superb image quality and outstanding auto focus that ultimately produce tack sharp images. I am working on the tack sharp part with practice, local college classes, tripod, reading, talking, Internet, UHH, etc..
My current D90 has no value as a trade in and I am willing to consider another brand besides Nikon. I am leaning towards a full-frame camera such as the Nikon Z6, Z7 and D850. But, I am attracted to the Sony A7 III, as well as the Olympus OMD series and the Fuji XT-3 with the smaller sensors. I am on the fence regarding mirrorless vs. regular DSLR technology.
Lastly, for landscapes, are 2.8 f-stop lenses really necessary when 6 or 11 f stops offer the best sharpness? 2.8 lenses are much more expensive, as you know. If you needed background blur I would think that a 1.4 or 1.8 prime lens would be better.
Thank you all for your help.
John T.
Hello all, br br I am nearing retirement and have... (
show quote)
Thanks, John, for taking the time to provide detailed background info and for
making your question open-ended. You've already received some great
suggestions for cameras.
There are lots of threads on the pros and cons of mirrorless, so I'll skip it--
except to say (1) battery drain is higher than on a DSLR; (2) prices are likely
to come down and EVF performance is likely to improve if you wait; and
(3) you probably won't be happy using your existing lenses with an adapter
unless the adapter fits
perfectly.
If you are going to make 10" x 8" or larger prints of a typical landscape subject
in a realistic style, and you'll be using a high quality printer, then you'll need a
full frame camera and a sharp, contrasty lens. You won't need this for a photo
of a fog bank, or if you're style is impreesionistic or pictorial (in fact, you may
want an unsharp lens for those styles).
If you need full frame, then that's a good reason to upgrade. Another good reason
is to get a newer, lower noise sensor. But beyond that, the new camera will mostly
add features--which your may or may not find useful.
In general shooting, the camera rarely limits what you can shoot. The limitation
is more likely to be the other gear you have (or don't have) with you: lenses, tripod,
speedlite, reflectors, etc. What gear you need obviously depends on distance and lighting
conditions, but it also depends on the subject and how you intend to display your prints.
It's good to think ahead about what lenses you may need, since lenses are very
expensive (particularly zoom lenses). And sometimes you can save money by
buying a body + lens bundle.
If you plan to shoot moving cars or aircraft on the ground, you will need a zoom for sure.
If not, then the zoom is mainly a convenience.
I don't think you'll encounter many low-light situations at air shows or car shows
(unless you shoot inside a cabin-class aircraft). And landscape photographers
typically shoot on a tripod, so in low-light situations, they can make long exposures.
So I'd suggest you buy the slower zoom, and use the savings to buy a fast prime lens
for landscape work, in either 50 mm or 35 mm length (whichever you prefer, 50 mm
is more common) f/2.8 is fast for a zoom, but not fast for a 50mm prime: even the
midrange ones from Canon and Nikon are f/1.4.
Most high quality prime lenses are sharpest at one stop narrower than their widest aperture.
For a a few very fast ones, or slighly less corrected ones, it may be two stops slower.
To be sure, you cat make some test shots of a lens test target or a brick wall at diffrerent
aperatures (with a tripod and mirror lock-up).
But the truth is that even the cheapest prime lenses from Nikon, Canon and Pentax, etc.
are sharp at their sharpest aperature--and very contrasty. These days, very few photos
are unsharp due to lenses--but many shots are unsharp due to other causes: subminiature
format, diffraction (e.g. f/22), camera shake, autofocus error, subject motion, lossy
compression (e.g. JPEG) or lossy digital filters during processing. People won't be aware
of these losses unless they either make largish prints or crop and magnify.
Midrange and "Pro" grade lenses may have a slightly better coating and slightly better
correction, but the main difference is wider maximum aperature.
A fast lens is the best solution to a low-light situation. Cranking up the ISO increases
noise--which may be OK in small image or print, but usually will show in a full-screen
image or 8 x 10" or larger print. Noise is worse in color. Processing can hide some of
the noise, but can't eliminate it (since by definition, noise is random).
With zoom lenses, the sharpest aperture can change depending on the
focal length. Exactly how depends on the lens design. Zoom lenses are
very complex to design, with a lot of tradeoffs. The best ones are very
good, but also very expensive, and never as well-corrected as an
equivalent quality prime lens. (I'm going to start a thread on lenses soon,
so I won't go into the designs here.)
Zoom lenses are never contrasty, because of internal flare. Generally, the more you
pay for a zoom lens, the less contrasty it is! That's because more expensive zooms
are better corrected, which means more groups = more surfaces = more flare.
Improved coatings can help reduce, but not eliminate flare. A 15 group = 30 surface
zoom lens is going to have flare, period. You won't see the flare, but you will
see the reduction in contrast.
Zooms are a lot shaper than they used to be, and coatings have improved--but not
enough to compensate for all the additional surfaces. Using one of these zooms is
like screwing 15 glass filters to the front of your lens (don't worry: they're
mulit-coated!).
I wish someone made a less-corrected (fewer groups and surfaces) but advanced coated
modern zoom lens. But most lens reviews concentrate on resolution and ignore
contrast, and lens manufactures design accordingly (even to the insane degree of
flattening the field of focus to match a test chart!).
Zoom lenses are only required for action, sports and some wildlife photography,
and photojournalism. Yet despite low contrast and high cost, zoom lenses are used
for probably 90% of shots taken on interchangable-lens cameras today. Why?
I think there two approaches to photography: "do everything" and "do what you do best".
Famous photographers tend to fall into the latter category.
Some (including some still working) shoot primarily or entirely with a single,
prime-focus lens: Cartier-Bresson (50 mm), Bill Cunningham (35 mm), Annie
Leibovitz (35 mm), Terry Richardson (35 mm), and Herb Ritts (100 mm).
Obviously, this limits what they can shoot--but that's not relevant: they do
what they do best.
Anyway, perhaps the best approach for you to to keep your D90 and its "utility"
zoom for casual shooting, and use your new camera (and whatever lenses and gear
you need) for serious work. That way you can "do everything" and also "do what
you do best". And ff your D90 gets broken or lost, you can easily and cheaply
replace it with another used D90 (or similar camera).