First photos with Sigma 10-20mm
Posted 17/07/2012 - 17:38
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I have this lens and i like it a lot i hardly took it off the camera for about 2months when i first got it. According to the crack it is at its best around f8. I sent some images to a friend who has a Nikon and he has gone out and bought one as well.I must try to unweld the 100mm macro from my K-r so i can get this back on, but the weather has been so crap at the moment it is hard to get out with the ultra wide.
Might pay to put a filter on it to protect that front element.
Might pay to put a filter on it to protect that front element.
Posted 17/07/2012 - 18:10
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Some of the Pentax tweaks for distortion and chromatic aberration are turned off when you pop a Sigma lens on. They do help Pentax lenses but do slow down the processing.
I enjoy my 10 -20 when abroad or on the coast. As you say macro weather (or bird watching)
I enjoy my 10 -20 when abroad or on the coast. As you say macro weather (or bird watching)
Posted 17/07/2012 - 18:22
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wvbarnes wrote:
Some of the Pentax tweaks for distortion and chromatic aberration are turned off when you pop a Sigma lens on. They do help Pentax lenses but do slow down the processing.
Some of the Pentax tweaks for distortion and chromatic aberration are turned off when you pop a Sigma lens on. They do help Pentax lenses but do slow down the processing.
That makes sense. I couldn't work out why it would be. Considering some of the distortion correction might be turned off it's a heck of nice lens. I found it difficult to take it off the camera to be honest. I put the 18-250mm on a few times, but soon put the 10-20mm back
I sort of wondered about a filter to protect the front lens, but my experiences with them haven't been particularly great regarding image quality.
These were all at f8 or f9 except for one which was f11 and interior one which is f5.6
Posted 17/07/2012 - 19:02
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Hi again Chris,
I would have thought a filter across an objective lens that big (and it is big isn't it?) would attract flare. I leave the shallow hood on all the time which also offers a bit of knock protection. Use outside of 90 degrees to any architecture does produce some interesting angles. My favourite use at widest is portrait landscapes of lakes and beaches.
I would have thought a filter across an objective lens that big (and it is big isn't it?) would attract flare. I leave the shallow hood on all the time which also offers a bit of knock protection. Use outside of 90 degrees to any architecture does produce some interesting angles. My favourite use at widest is portrait landscapes of lakes and beaches.
Posted 17/07/2012 - 20:17
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Nice pics of italy, this lens is really good when you get used to using.
Posted 17/07/2012 - 20:30
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wvbarnes wrote:
Hi again Chris,
I would have thought a filter across an objective lens that big (and it is big isn't it?) would attract flare. I leave the shallow hood on all the time which also offers a bit of knock protection. Use outside of 90 degrees to any architecture does produce some interesting angles. My favourite use at widest is portrait landscapes of lakes and beaches.
Hi again Chris,
I would have thought a filter across an objective lens that big (and it is big isn't it?) would attract flare. I leave the shallow hood on all the time which also offers a bit of knock protection. Use outside of 90 degrees to any architecture does produce some interesting angles. My favourite use at widest is portrait landscapes of lakes and beaches.
Hi Bill
I leave the hood on all the time too and so far (1 week!) haven't had any near misses. I can see the sense of filters, but not at the expense of image quality. I know it's a perennial argument.
Posted 18/07/2012 - 08:03
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These pics look nice & sharp & I like the colours a lot.
Is this the slow or fast version of the lens?
Is this the slow or fast version of the lens?
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses
Fan of DA limited and old manual lenses
Posted 18/07/2012 - 08:20
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Jonathan-Mac wrote:
These pics look nice & sharp & I like the colours a lot.
Is this the slow or fast version of the lens?
These pics look nice & sharp & I like the colours a lot.
Is this the slow or fast version of the lens?
Older, slower version, but I didn't find any problems with low light, especially with the K-r's high ISO abilities. The indoor statue shot was at ISO 500 and I have others at ISO 1000+ which are also fine. I have the K-r set in 'Reversal Film' mode, which apparently replicates old slide film. It seems to give particularly good colours.
Posted 18/07/2012 - 09:12
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Pompeii. Great place. I last went in 1980. the 10-20 is alos a lens I'd like to get one day.
It's not hugely essential as I have a DA10-17, DA14 and 17-70 siggy, so a lot is covered, but the 10-20 does ahve a nice character.
It's not hugely essential as I have a DA10-17, DA14 and 17-70 siggy, so a lot is covered, but the 10-20 does ahve a nice character.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 18/07/2012 - 09:34
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Smeggypants wrote:
Pompeii. Great place. I last went in 1980.
Pompeii. Great place. I last went in 1980.
I expected to be underwhelmed by the place and overwhelmed by other tourists, but the reverse happened. I actually preferred Pompeii to Herculaneum in many respects and we got there early and managed to stay ahead of most of the other tourists.
I'd have loved to have been there at sunrise/sunset, but it opens too late and shuts too early at this time of year.
I seriously considered the 10-17mm, but felt it might be a step too far with my relative inexperience. The 10-20mm seems a bit more forgiving. I still have some strange shots, mind.....
Posted 18/07/2012 - 09:43
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Strange shots are good IMO - You don't need experience to have fun with the 10-17. Quite the reverse in fact. Most shots I take with my 10-17 I don't even look through the view finder. You're hardly likely to miss the subject matter with such a wide FOV
10-17 would be heaven at Pompeii. Put camera on ground in between the columns on timer.
here's an example I did at the 7-7 flase flag memorial in London last year

and the same at Canary Wharf

10-17 would be heaven at Pompeii. Put camera on ground in between the columns on timer.
here's an example I did at the 7-7 flase flag memorial in London last year

and the same at Canary Wharf

[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 18/07/2012 - 11:35
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Your strange shots are good. My strange shots included making my 8 stone son look like 18 stone with a beehive hairdo. I've threatened to put it on Facebook next time he annoys me
Posted 18/07/2012 - 20:04
Link
Actually using the 10-17 at 10 about 2mm in front of someone's nose makes for great big nose shots
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
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863 posts
13 years
Norfolk
The ability to stand in a room and pretty much take the whole area in from a few feet back was amazing. I thought I would end up using it from time to time, but it actually stayed on the camera for more or less the whole time - much more versatile than I thought. 18mm simply doesn't seem enough any more
Here are a few of my favourites from the trip. They aren't brilliant by any means as I have lots to learn so any C & C welcomed.
One thing I did notice was that each photo taken with the 10-20mm took less time to process than a similar one taken with the 18-250mm. No idea why this might be!