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03-13-2007, 06:42 PM   #16
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(I tend to take a lot of tight face shots - a lot of them when I travel, don't know them and don't want to invade their privacy too much).

You point that Sigma bazooka at them and you will invade their privacy.

My Sigma 70-300 also seems a bit soft, and low contrast, at the long end, at a distance. I "think" it is a bit better if I shoot at ISO 400 even in bright daylight to allow a smaller aperture. I'm still undecided if I will keep it.

I use the Pentax 50-200 unless I "need" to be at the long end of the 70-300. It is about 1/2 the bulk. making it abit less intrusive for peopel shots.

My side-by-side test over the same focal length (100 and 200mm) gives the slight advantage to the Pentax.

03-13-2007, 07:28 PM   #17
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my base lens set up is a tamron 18 x 200 and the sigma 70 x 300 apo dg.. the two have a big overlap the tamrom works well up say 150mm and the sigma takes over where the tamron starts to to show its weak spots..

i do have a couple of tele converters and some other lenses.. but the tamron and the sigma between them cover most things nicely..

my son uses a similar set up.. tamron 18 x 200 only he has the tamron 70 x 300.. we compare lens test notes and have been thru many lenses to arrive at what we like..

we do need the versatility of zooms thow and neither of us like constant lens changeing.. we both swear by the tamron 18 x 200 as a general purpose walk-about lens..

i do have a few old manual primes.. except for the pentax M 50mm 1.7 they all fall way short compared to the newer zooms when it comes down to the sharpness factor.. something that did surprize me i must admit..

i shouldnt perhaps say this but the pentax kit lens my son started off with came bottom of the list during all our lens testing activities.. it soon got ebayed..

03-14-2007, 10:57 PM   #18
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I have the Sigma 70-300 apo dg macro, and while it tends to be a little soft at the long end, I am more than happy with it. Having said that, I was ruled to a large degree by budget, and the Sigma seemed good value. It would not have been my first choice, obviously, had budget not been involved. But it will do until I can afford really good quality glass. I wanted the 300 because I shoot sport (cricket) and material for travel magazines that often involves wildlife or scenery on river banks when I am cruising on SE Asian rivers where my vessel can be 500+ yards from the shoreline. The Brahmaputra, in India, for example, can be 15 miles wide (not that I will be in mid stream) so the long lens is essential.

Last edited by Darius4522; 03-14-2007 at 11:03 PM.
03-14-2007, 11:23 PM   #19
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Hey Darius, a 300 is hardly long enough for cricket is it? Unless it's small grounds.

03-14-2007, 11:24 PM   #20
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QuoteOriginally posted by Arpe Quote
Hey Darius, a 300 is hardly long enough for cricket is it? Unless it's small grounds.
I was about to suggest a teleconverter. He would need one that does AF if he pulls the trigger? Suggestions and pricing?
03-15-2007, 08:54 AM   #21
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the tamron 1.4 or kenco 1.5 work very nicely.. they are both identcal and another example of budget wonders..

whilst accepting the image degrade factor must be there i havnt been able to find it in any meaningfull way.. once again something "cheap" thats works way better than i thought it would..

one thing is clear about internet comment.. it overrates the exensive stuff and underrates the cheaper stuff..

03-24-2007, 02:18 AM   #22
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Thanks evryone... decision made

Thanks for the advice. After thinking about it for a couple of days and playing with both lenses, I went with the Pentax 50-200. Down the road, I'll think about a longer zoom.
03-24-2007, 06:41 AM   #23
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What Lens Indeed for my K10D

I have quite a few lenses now, and some are great for certain shots, and others for different shots. I got my K10D with the Pentax 18-55DA and Pentax 50-200DA.

The 18-55 does well, and I have taken many macro shots as well with this lens, it is a keeper.

The 50-200 was also ok, but after I found a Sigma 70-300 in mint condition at Cash Converters for $90, I sold the 50-200DA

Here is a shot with the Sigma 70-300 at full zoom 300mm, 1/350, F8 not as good as a $2000 lens, but I have been really happy with this lens, DOF requires a lot of light, and this crested pigeon was 15m away from me.

The second shot was taken with another 'low budget lens' according to some, I have found this Sigma 18-200 AF DG to be a really flexible lens used with the K10D. A great walk around lens which cost new in Australia $425, I have taken some superb IMHO shots with this lens.

Taken at F11, 1/90s, 18mm

This an 1800's bank in Bendigo, Victoria

The nice thing about used lenses, is that they are usually a lot less than new, and if you can test them out, even better.

I think there are better lenses on the horizon, but what is now available are pretty good too.

03-31-2007, 08:04 AM   #24
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QuoteOriginally posted by trog100 Quote
a terrible lens is the latest sigma 70 x 300 apo dg.. here is a couple of cr-ppy soft examles useing mine for a candid face shot.. the pentax lens must be a lot better..

full frame image jpeg straight from my k100.. resized for posting useing irfanview

sorry guys but the pentax lens aint even in the same league.. its small which is its plus point.. but thats about it..


ps.. sorry for the cr-ppy jpegs my k100 produces.. i must learn to shoot raw in future and start taking real pictures..

ps.. i must also apologize for attempting to back up my original post with some valid arguement as well.. opinions without back up aint worth a wot-sit.. just like an ass-hole everybody has one..

May I ask whether you shoot those pictures using sigma lens or pentax 50-200?

03-31-2007, 08:42 AM   #25
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the shots i posted are with the sigma 70 x 300 apo dg or tamron 18 x 200 walk about lens..

i hope u detect the "sarcasm" in my earlier post.. i just get a little fed up with the knocking these two lenses get by people u have never used them and are simply passing on what they read..


ps.. forget the tamron comment they are all sigma 70 x 300.. another time another post..

Last edited by trog100; 03-31-2007 at 08:47 AM.

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