18 - 55 and 50 - 200 or alternative


PeterMac

Link Posted 05/07/2010 - 14:13
Having just returned from Seattle, i was quite often swapping between my 18 - 55 and 50 - 200. By the time i had swapped lenses, it was often the case that i had missed an opportunity of a shot, especially when kids running around in a fountain were involved, or switching between wildlife and scenic shots.

I think i've read some stuff on here about people using an 18-200 lens, or even an 18-300?? not sure though.

Has anyone got any experience, and do you notice any detriment to the quality of your shots, especially at the wide end?

Any info much appreciated.
Pentax K20D, Pentax 18-55mm II, Pentax M 50mm 1: 1.7, Super Paragon 1: 2.8 24mm Macro, Pentax smc DA 50-200 mm F4-5.6 ED
my flickr
buy images

gartmore

Link Posted 05/07/2010 - 14:26
TBH I dont think changing lenses is such a big deal but 'visualisation' is. Knowing what you intend to photograph and 'seeing' the end result before you press the button will take you some way to ensuring the right bit of glass is stuck to the camera.

Superzoom lenses are slower, generally, certainly bigger and introduce a whole set of problems of their own.

Pretty much the whole point of DSLR ownership is about interchangable lenses as you know.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -

Anvh

Link Posted 05/07/2010 - 14:48
I'm with Ken here with this matter.
You might get some shot because you've the range but you will also miss shots because the lens is slower.

I had the DA18-250 but sold it to get the DA*50-135. I was just getting crazy about the amount off range and I couldn't see the shots any more and the slowness of the lens wasn't helping
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

PeterMac

Link Posted 05/07/2010 - 15:06
ok. points taken well on board and nail struck on head with this one.

wish i had the money for any pentax lens with a * on the name, but the 50-135 sounds very nice and very useful.
Pentax K20D, Pentax 18-55mm II, Pentax M 50mm 1: 1.7, Super Paragon 1: 2.8 24mm Macro, Pentax smc DA 50-200 mm F4-5.6 ED
my flickr
buy images

Anvh

Link Posted 05/07/2010 - 15:20
Yes the f/2.8 make is a very nice lens to use and that's the reason why I got that one and also the image quality.
The DA18-250 was good from 18 to 150mm but the rest wasn't that great and I hardly used the wide angle of that lens so I hardly used it and I rather used the DFA100 and the DA40 at that time.

The DA18-250 surely is a good lens so don't get me wrong but it has limitation like any other lens and i believe the balance of the 18-55 & 50-200 is a better one.

You could have a look at 17-70 lenses maybe, many find that quite an ideal range for a walk around lens and the image quality would most likely be slightly better then your current zooms.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

MrCynical

Link Posted 05/07/2010 - 15:58
A first useful stop would be a program called ExposurePlot. It will analyse all of your photos (JPEG format only - if you use raw then ImageReporter [Lightroom only] is what I use) and give you a graph of what focal lengths you used. This would tell you whether a 17-70 will be any more useful to you than an 18-55 (e.g. if most of your shots are only above 55mm, whereas if lots are over 100mm then it wouldn't be).

As far as superzooms go, the Pentax 18-250mm is the best (or the least bad), and the Tamron 18-250mm is actually the same lens (perhaps excluding coating) so if you are buying a superzoom lens buy whichever of those two you can find for the cheapest. I'd still echo the above though - a superzoom will not produce images as good as your kit lenses.

Anvh

Link Posted 05/07/2010 - 16:14
MrCynical wrote:
It will analyse all of your photos (JPEG format only - if you use raw then ImageReporter [Lightroom only] is what I use) and give you a graph of what focal lengths you used.

Something like that already is in lightroom so no need for a plugin.

Simply go to the Library window and and above the photos you see the line Library filters and if you select Metadata you can select focal length and you can precisely see how many photos of which focal length you have.
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
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