Showing posts with label Pentax 18-55mm. Show all posts
Showing posts with label Pentax 18-55mm. Show all posts

Wednesday, 5 January 2011

K-5 in sunshine - X1 and A55 gone

Pentax K-5 18-55mm zoom


Since buying the Pentax K-5 a week ago, I finally got to use it outdoors in sunshine! It didn't last long but it was a opportunity at last to see how it performed.


Pentax K-5 18-55mm zoom


I used two lenses. The 35mm f/2.4 which was impressive (see later) and the 18-55mm kit zoom which was OK. The 18-55mm is certainly not a great lens, but the results were reasonable if stopped down. I've been using it indoors quite a lot, either hand held at high ISO's where the results are quite noisy or on a tripod at low ISO's and narrow apertures, where it performed well. This was the first opportunity to use it in the situation where I would use it most, outdoors hand held. At f/3.5 to f.5.6 the edges were a bit soft and there's a fair amount of CA and fringing. Things get a bit better at f/8 and f/11. I'm not sure whether to keep this lens, as I found it somewhat disappointing. Using it indoors on a tripod for some still life shots, it didn't seem too bad, and I described it as a decent lens. Now I'm not so sure.


Pentax K-5 35mm f2.4


The performance of the 35mm f/2.4 was much better. This is a really good lens. Sharp across the frame and at all apertures. Its relatively inexpensive for a Pentax prime lens, but I didn't detect any compromise on the image quality.


I've decided to go with prime lenses at the moment with the Pentax. I've got a 15mm f/4 and 70mm f/2.4 arriving today.


Sony A55 18-55mm Kit Lens Sweep Panorama


The Sony A55, the camera that took this amazing image, has been sold on ebay. I haven't had it very long and if you read my posts on it you will be aware that I was pretty impressed. It would be fairer to say that I was very impressed with the technology but had some reservations about the body construction. In my predictions the other day, I suggested Sony might go to town with this technology and produce a top of the range camera with it, even possibly full-frame. This is a bit fanciful, but I do hope that Sony don't just leave these features in cameras like the A55 and the A580. I did actually consider the latter camera before deciding on the K-5, but went with the Pentax because of the construction. This may sound strange coming from someone who uses m4/3, but one of the things about the Panasonic G series and the Olympus Pens is they are pretty sturdy. I have some concerns about the lenses but the bodies are very well put together. 


My hope is that Sony, with the A77 or A99 or whatever they are going to call it, can house the translucent mirror technology in a heavier duty body. The sweep panorama and high-speed bursts, which I loved, felt like they were shaking the A55 to bits! The articulated screen, which again I liked seemed very flimsy and there was the overheating, caused by the image stabilisation on the video, which has to be sorted out. This is a brilliant feature, allowing stable hand held video, but to have it sabotaged by this problem is a bit slack on Sony's part. Didn't they actually test this? So as I indicated I have put the inexpensive Sony primes I bought away in a cupboard, in the hope that Sony will come up with a more robust camera in the near future. Rumours abound that this is coming soon, we will see.


Leica X1


My Leica X1 also now has a new owner. Again a very nice camera but one I've been using less and less, and currently not at all. I found it very useful at weddings, since it was very quiet and produced great images in low light. However since I no longer do that, its been used as a backup camera. I've been carrying it around with me, but haven't been using it. I have found the slow auto focus somewhat restricting, though the gentleman who bought it informs me a new firmware upgrade is on the way. Perhaps the most frustrating thing about it was the inability to lock the exposure. It would have made a great camera for multi image panoramas, but apart from using it in full manual there was no way to lock the exposure. Since the manual focusing aid wasn't that great, this would involve using the AF, then switching it into MF to take the Panorama. It was a long winded and fiddly procedure and I didn't do it very often. Its a great camera for those who want to take the occasional picture, but I became more and more frustrated with it. I certainly find the Leica M9 with its manual focus rangefinder focusing much quicker to work with. 


I do have a certain tolerance for putting up with less than straightforward camera handling, if the image quality is something I can't get anywhere else and at the time I bought it the X1 produced incredible results in a small package. Since buying it the Panasonic GH2 has appeared and has made it redundant. Using a 20mm f/1.7 on the GH2 at ISO 1600 produces better files than the slower 24mm f.2.8 at ISO 3200 on the X1, so its low light advantage has gone. The Voigtlander 25mm f/0.95 Nokton is a sharper and faster lens, so its advantage for outdoors landscape work has also gone. 


The arrival of the Panasonic GH2 and the Pentax K-5 has put a lot of my gear out of work. I had got into the crazy situation of having 9 cameras all providing me with different things. With  these recent additions I can handle everything with 3. 


Its the nature of the digital revolution it seems, for gear to evolve faster than before, and the cycle of new products appearing with improved features seems to be getting shorter. Is it an infinite improvement curve or are we approaching any kind of limit? I was using a Fuji S2 Pro back in 2003, and in 8 years there's been a slow steady improvement. I've gone from 6MP to 16MP using an APS-C sensor with greatly improved low-light capability but looking at images on the screen the Fuji pictures still hold up. There is a often an expectation that things move faster than they do. You often see predictions something like, "Camera phones will produce image quality equal to a D3X in a few years time" Well, they probably won't, but if they do imagine what the D3X equivalent will produce. 


Its an odd situation that with more and more of my pictures selling for web use, my cameras are capable of producing higher and higher resolutions. What will happen to magazine and book production in the future is certainly uncertain. I used to think that printed media would always have a place, but I certainly find myself reading more and more from my computer screen. It then becomes a situation about exactly where is this increased resolution useful. I guess we could get to a situation where resolution becomes so high that you only need one lens on a camera and you just crop into the picture to get what else you need, but I hope that isn't the case. I'm certainly no technophobe but I do like the idea of cameras and lenses. I'd hate to think that the future was about small all in one boxes shooting holographic stills and 3-D movies with no effort.


In a comment to one of my recent posts John M Flores wrote about the GH2:- "Hopefully it will become an intuitive and capable photographic and video tool, but right now it feels more like an electronic device."  I do have some sympathy with that comment and I certainly like a camera to look like a camera. I prefer dials to buttons, and I do appreciate a bit of metal and leather. (!!!)  It would be sad if we lost that and all cameras looked like some of the ultra modern electronic boxes that now dominate the compact camera market.


David

Saturday, 1 January 2011

The K-5 changes everything - A new year "clearout"

Sounds really dramatic! though not quite as life changing as it sounds. The great thing about the K-5 however is that its versatile. Fitted with its battery grip and one of the weather sealed zooms, its an "any job" pro spec DSLR with good image quality, fast operation (certainly fast enough for me) good high ISO performance and despite its size it has a sense of "gravitas" when used in a situation where that kind of thing matters. 

Remove the battery grip, put on some of the small limited Pentax lenses and it becomes a small, light, carry anywhere unobtrusive camera that won't generate a second look. Ideal for library, stock and travel work. 

At the moment I really need to get and do some testing with the 18-55mm zoom and 35mm f/2.4 lenses to see if they are good enough for my needs. I've been doing some indoors still-life work with the zoom and its somewhat better than I thought it would be. However I need to be sure its fine for my bread and butter library work.

I've been looking back through my previous Pentax camera / lens combinations and looking at internet samples to see what I'll be looking to add. At the moment I'm only planning to get the limited 70mm f2.4 pancake lens. This is a great lens and I think its comparable to the limited 77mm f/1.8, which is saying something. I'll see how I go from there.

So one of the uses the K-5 has been put to is photographing gear for ebay. 

Some of the cameras and lenses I'm planning to sell are ones I've been very enthusiastic about and I shall be sorry to see them go, but things do move on.

SONY A55

I love the technology in this camera, but I'm unsure of the capability of the body to handle it. One of its great virtues is the ability to shoot hand-held stable video footage. However if you do this for any length of time the overheating warning kicks in and the camera has to be turned off for a while. I hadn't experienced it before in the freezing cold weather but now its warmed up a bit, its become a problem. That plus the general lightweight feel of the camera, makes me think that I should wait until Sony house all this in a more substantial body. Its pretty obvious I think that Sony are going to get serious with this translucent mirror system and there's already been a "mock-up" at Photokina. They must realise that many of the features they have developed in the camera will appeal to photographers across the board from snapshooters to pros. When they get this in a heavier duty package then I'll certainly be interested. To that end my plan is to sell the A55 and put the primes I bought into a drawer for a while, until the A77 or whatever its called appears.

ON THE TRANSFER LIST
The Olympus E-P2 just has to go. The tests I did a few days ago confirmed what I have been trying to avoid for some time. Its image quality doesn't stand up the GH2 and I cant see myself using it much. Its a great looking camera, but its the results that count.

For some reason the results I'm getting from the Olympus 50mm macro on the GH2 have lost the "WOW' factor they gave me on the GH1. I haven't the faintest idea why that is. The GH2 is the largest sensor that its possible to use this lens on and maybe at 16MP it just becomes good instead of great. I'm also disappointed that the AF is not better on the GH2. Its pretty much the same as on Olympus m4/3 cameras, which is grindingly slow. I'm going to replace it with the Panasonic 45mm f2.8.

I'm also putting the L10 / 14-50mm and Leica Panasonic 14-150mm lenses up for sale. Not that they have suddenly become bad lenses, but because my Olympus 14-150mm is great. Maybe I got one they took special care over, but my copy is terrific. Its so close, in terms of image quality, to the monster PanLeica that I really struggle to tell the difference. The more I use the Olympus lens the more I like it. It works really well with the GH2 and its size and weight are great advantages. 

The GF1 and Leica X1 are also going. Neither are getting used, other than a few camera porn snaps for here. Again I love them as cameras, but they are just sitting around looking decorative!

So the New Year starting line-up looks like:-

Leica M9. Voigtlander 35mm f1.4, Voigtlander 75mm f1.8.

Pentax K-5. 18-55mm zoom, 35mm f2.4, 70mm f/2.4.

Panasonic GH2. Olympus 9-18mm zoom, Olympus 14-150mm zoom, Panasonic 20mm f1.7, Panasonic 45mm f2.8 macro, Voigtlander 25mm f0.95.

On the bench.

Panasonic GH1 as backup. I would sell it if it didn't look so battered from the time I dropped it. As it is I don't think anyone will give me much for it. Since its still working perfectly I will use it as my "bike ride" or "keep in the car" camera.

Sony 30mm f2.8 macro, Sony 35mm f1.8, Sony 50mm f1.8, Sony 85mm f2.8 stored away awaiting developments.



Thursday, 30 December 2010

Some K-5 samples

Pentax K-5 35mm f2.4


These taken with the 35mm f/2.4


Pentax K-5 35mm f2.4


Pentax K-5 35mm f2.4


Pentax K-5 35mm f2.4


Pentax K-5 35mm f2.4


Pentax K-5 35mm f2.4


Below these are out of camera jpgs. If you click through to flickr you can see them at full size. Taken with the 18-55mm kit zoom. N.B. There's fairly strong jpg compression on these.


ISO 800


Pentax K-5 18-55mm  Battery Grip


ISO 1600


Pentax K-5 18-55mm Battery Grip


ISO 3200


Pentax K-5 18-55mm Battery Grip


ISO 6400


Pentax K-5 18-55mm  Battery Grip


Really rather impressive.