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04-28-2008, 03:33 PM   #1
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how would I know?

I got my mothers day gift early this year a tamron 28-75 2.8, yeays, but I've heard a lot about bad copys and back focusing(not sure what that means). What are some early signs I got a bad copy? I don't want to go a month and then notice the problem.Whats a good way to test things?

04-28-2008, 05:05 PM   #2
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Welcome to Pentax Forums,

The only way to know about the quality of a lens is to try it first.
Please post your first photograph with it and we'll help you judge it's quality. Plus recommend any tests at that time.
04-28-2008, 08:49 PM   #3
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ok here is one that is edited, does that matter or should I take an unedited pic, I delete pictures I don't plan to use because I'm starting to shoot in raw, I used lightroom to lighten it up and a cs3 action to convert it to black and white, I did use the clarity button once. I'm gonna have to give another example aren't I?
04-28-2008, 09:59 PM   #4
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I don't think you need to worry about your lens. Goodness gracious, no.

04-29-2008, 12:17 AM   #5
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I don't usually comment on photos of peoples kids...

But that photo is a fantastic portrait. Wished I could take a photo of my sister's kids even half as good as that.

Well done.
04-29-2008, 12:22 AM   #6
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Beautiful photograph there momtographer

Do you have a web site we can browse through?
04-29-2008, 12:25 AM   #7
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When you get many great images like this one, the lens would have to be a good copy
04-29-2008, 02:27 AM   #8
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You definitely don't have a problem with your Tammy. Great shot. Beautiful B&W conversion also. Do you mind sharing your conversion technique?

I've has 2 copies of the Tammy in 2 different mounts. They've both been fine.

04-29-2008, 03:22 AM   #9
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Hi momtographer

That's one SHARP lens, judging by the number of individual hairs I can pick out on the child's head. Methinks you have a good copy of the Tamron, no question !

Best regards,
Richard
04-29-2008, 03:33 AM   #10
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That is a VERY POOR COPY.....You should send it to me and I will give you a Cosina 35-70 f4.5/6.3 lens to replace it. It can focus and zoom as well. It is a very dark lens which works well in extreme sunlight at 800 iso.

Ben...Trust Me!!!!
04-29-2008, 04:25 AM   #11
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Hi Ben

Oooh, you are an AWFUL tease......lol ! Whilst we're at it, I'd like to cut a favourable deal on that monstrous mirror lens you recently acquired ? The reason being I desperately need to impress the neighbours, because their net-curtains have started twitching uncontrollably of late and I require something to put a stop to this irritating habit. My only worry is whether people will start giving me funny looks when I go out in public with that contraption round my neck !!!!! What do you reckon ?????

Best regards
Richard
04-29-2008, 05:54 AM   #12
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QuoteOriginally posted by Confused Quote
Hi Ben

Oooh, you are an AWFUL tease......lol ! Whilst we're at it, I'd like to cut a favourable deal on that monstrous mirror lens you recently acquired ? The reason being I desperately need to impress the neighbours, because their net-curtains have started twitching uncontrollably of late and I require something to put a stop to this irritating habit. My only worry is whether people will start giving me funny looks when I go out in public with that contraption round my neck !!!!! What do you reckon ?????

Best regards
Richard
Just wear a mustache, sun glasses a blond wig and a hat....OOOPPPPSSSS...Gees that sounds like me!!!
04-29-2008, 08:54 AM   #13
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Good to know I don't have a bad copy I think I'll pass on the trade! I don't have any sort of portfolio, I just got my first pentax in feb (k100d super) and I recently upgraded to a k10d, I'll upload some to the forums gallery.To the person that asked about my conversion, I used an action from pioneer woman just scroll down till you see the link that says "Download PW Action Set 1", it was free!! Thank you for all the replies I really appreciate them.
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