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02-25-2010, 12:11 PM   #16
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I have had this lens for a while and sold it recently; for a shot wide open I find the sharpness very decent; as all fast tele lenses I improves a lot stopped down at f4.
As for close up shots, like birds, DOF is so small that you have to stop down anyway.

02-25-2010, 02:24 PM   #17
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QuoteOriginally posted by cps_goodbuy Quote
Thanks for the comments.

The clear filter idea is based on the 300+ thread where we have seen that some lenses seem to become a little better with the right rear filter.

Right now I am deciding whether to keep or sell the lense, thats all.
I believe that any lens that uses drop in filters in the rear is designed to work best with a filter installed.
02-25-2010, 02:48 PM   #18
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QuoteOriginally posted by Canada_Rockies Quote
I believe that any lens that uses drop in filters in the rear is designed to work best with a filter installed.
The Tamron 300mm f/2.8 60B is. That is for certian. I even read the included 115mm front filter increases sharpness as well on that particular lens.
02-25-2010, 02:48 PM   #19
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QuoteOriginally posted by Canada_Rockies Quote
I believe that any lens that uses drop in filters in the rear is designed to work best with a filter installed.
The Tamron 300mm f/2.8 60B is. That is for certain. I even read the included 115mm front filter increases sharpness as well on that particular lens.

02-25-2010, 08:25 PM   #20
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QuoteOriginally posted by cps_goodbuy Quote
*chases girlfriends cat around the house*

Edit: lovely dog image
Offers some fish to the cat and it will pose for you


QuoteOriginally posted by goubejp Quote
I have had this lens for a while and sold it recently; for a shot wide open I find the sharpness very decent; as all fast tele lenses I improves a lot stopped down at f4.
As for close up shots, like birds, DOF is so small that you have to stop down anyway.
I am still waiting for your lens from france to singapore... Should be here anytime now.

tks.

marcus
02-25-2010, 09:17 PM   #21
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QuoteOriginally posted by marcusyoung Quote
Offers some fish to the cat and it will pose for you

. . .
I tried this once and I got 3 cats up both legs . . . they climbed me like a tree! I had a stringer of fish in one hand and a camera in the other.
02-26-2010, 01:03 AM   #22
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QuoteOriginally posted by Blue Quote
I tried this once and I got 3 cats up both legs . . . they climbed me like a tree! I had a stringer of fish in one hand and a camera in the other.
3 cats! You are cat lovers, I suppose. That's a good subject to test lenses.

marcus
02-26-2010, 01:23 AM   #23
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Hi Marcus
glad to see you here; the web site that allow to track the parcel tells that the lens is at the Singapore customs; I hope they will not keep it too long.
Here is a good example that one can expect from this lens - here stopped down at f4.5; despite the very hard light conditions color rendering and contrast is excellent. Wide open it is prone to blue fringing anyway (blue halo around harsh light transitions for subjects slightly out of focus)

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02-26-2010, 04:08 AM   #24
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QuoteOriginally posted by Canada_Rockies Quote
I believe that any lens that uses drop in filters in the rear is designed to work best with a filter installed.
No. For instance, as has been mentioned the Tamron 60B was designed with the filter in place, whereas its predecessor as designed without a filter place, despite having the slot. Also, we have a very extensive thread in the 300mm lens club, with many example photos. And interestingly enough comparissons with and without filter show different results. Some lenses work much(!) better with the filter in place and other visibly better without the filter.

Ben
02-26-2010, 02:01 PM   #25
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QuoteOriginally posted by marcusyoung Quote
Offers some fish to the cat and it will pose for you
The silly cat doesn't eat fish or meat!
02-26-2010, 02:02 PM   #26
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going to bug the girlfriend so I can test on her eye
02-26-2010, 03:33 PM   #27
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With and without filter at 2.8 1/180, flash, at approx 4m
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02-26-2010, 03:35 PM   #28
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With and without filter at f4 1/180, flash, at approx 4m
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02-26-2010, 03:37 PM   #29
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With and without filter at 8 1/180, flash, at approx 4m
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Last edited by cps_goodbuy; 02-26-2010 at 03:51 PM.
02-26-2010, 03:41 PM   #30
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those are the 100% crops anyhow, 550x600 from 3872x2592. I'm seeing that while they have higher contrast as the f goes higher, howver I feel that there is a similar detail being resolved, any opinion. Feel free to argue this ^^

Also, I have absolutely no idea why I am now seeing that not having the filter is improving the sharpness? even at f8?

Last edited by cps_goodbuy; 02-26-2010 at 03:53 PM.
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