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03-28-2009, 09:33 AM   #1
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Sigma 50-500mm

I have the chance of buying this lens used from someone here in the UK for the equivilent of $570. It is in mint condition with everything but the box.

The seller is a fair way from me so I need an idea of performance.

Now the thing is I have a F* 300mm f4.5 and am basically wondering if the Sigma is going to compare favourably to the Pentax at 300mm (personally I would be very suprised if it can) in which case I can sell the 300mm or am I just going to end up with another lens.

I would sell the Sigma 135-400mm APO DG I have though as I am not overkeen on that one.

Thanks.

03-28-2009, 10:31 AM   #2
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QuoteOriginally posted by Mike.P Quote
I have the chance of buying this lens used from someone here in the UK for the equivilent of $570. It is in mint condition with everything but the box.

The seller is a fair way from me so I need an idea of performance.

Now the thing is I have a F* 300mm f4.5 and am basically wondering if the Sigma is going to compare favourably to the Pentax at 300mm (personally I would be very suprised if it can) in which case I can sell the 300mm or am I just going to end up with another lens.

I would sell the Sigma 135-400mm APO DG I have though as I am not overkeen on that one.

Thanks.
Mike, the F* 300mm f/4.5 is outstanding from the recent browsing of threads. I would think it will be a mistake to sell it. Are you finding yourself lacking in focal length? Have you tried the Pentax F-1.7x AF TC? Threads from "Ron ~retired" in dpreview shows he has quite a lot of good pictures from use of F-1.7x along with A* 300mm and he also has a bigma, I think. TC can be very controversial due to the IQ degradation and light loss, but a cheaper way to reach the occasional lack of reach as in 500mm or 600mm. I saw one thread with stacking on Pentax F-1.7x and Tamron Pz-AF 1.4x TC for 2.38x. With the F-1.7x and the presence of a good 300mm f/4.0-4.5 and a good 200mm f/2.8, you have the best in 200mm, 300mm and the virtual 500mm (300+1.7x) and other combination if you happen to use the longer end in occasion.

I am think many experienced user on Bigma can fill in the Sigma's strength and weakness.

Question on Sigma 135-400mm f/4.5-5.6 APO, can you clarify on your disappointments as I thought that is already well praised by many due to the lower cost and good reach?

Thanks,
Hin

Last edited by hinman; 03-28-2009 at 10:37 AM.
03-28-2009, 12:16 PM   #3
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QuoteOriginally posted by hinman Quote
Question on Sigma 135-400mm f/4.5-5.6 APO, can you clarify on your disappointments as I thought that is already well praised by many due to the lower cost and good reach?

Thanks,
Hin
The 135-400mm is fairly priced for what it is but the results from it are not very consistant (with my K10D anyway). I have had some very good shots taken with it but probably 70% of the time I have had to delete pics due to softness.
It seems to cope with large objects such as airplanes, boats, cars etc much better than items with more detail such as birds.

The value of the lens has also risen over here due to the bad exchange rate which means if I sell abroad for the $ or then it would cover 3/4 of the Bigma costs.
03-28-2009, 01:20 PM   #4
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Mike,
For that money the Bigma is worth it if:
1. You have a need to get to 500mm;
2. You want to play with the Bigma but are OK with reselling it.

Your 300mm is superior (don't own one, but the pictures are quite clear). I'd hang onto to that and see if you use it much after getting the Bigma. I would sell the 135-400mm. I think it is inferior to the Bigma.
The issue is whether you need 500mm, and whether the opportunity and hassle of reselling the Bigma is worth it to you.

M

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