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FORUMS Sony Cameras, Lenses & Accessories Sony Cameras 
Thread started 27 May 2015 (Wednesday) 18:49
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Charlie
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Mar 14, 2017 13:54 |  #31216

welps I did a quick compare between the 70-300g vs 100-300.

generally, the 70-300g was sharper wide open, while the 100-300 was sharper stopped down. Pretty interesting, didnt expect that. The 100-300 has some CA issues, even stopped down, mostly @300, the 70-300 is clean in that regard.

the contrast difference is huge with high contrast targets

attached are shots at F8 and size difference


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TRhoads
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Mar 14, 2017 14:13 |  #31217

in your comparison image...which image came from which lens...


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Charlie
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Mar 14, 2017 14:27 |  #31218

TRhoads wrote in post #18300904 (external link)
in your comparison image...which image came from which lens...

left 70-300g right contax 100-300.

did tests at all marked focal lengths, wide open and f8. the attached can pretty much summarize stopped down results between the two accross the frame. Contax generally better stopped down all matching focal lengths


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David ­ Arbogast
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Mar 14, 2017 14:56 |  #31219

100-300mm looks great in comparison.


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Mar 14, 2017 15:27 |  #31220

Whats the weight difference like Charlie? I assume the Contax is heavier. This whole time I thought you had the Canon 100-300!


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Mar 14, 2017 16:02 |  #31221

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Charlie
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Mar 14, 2017 16:05 |  #31222

xpfloyd wrote in post #18300965 (external link)
Whats the weight difference like Charlie? I assume the Contax is heavier. This whole time I thought you had the Canon 100-300!

hard to tell a difference, the 70-300 is a little hard to fit into the bags I have since it's a little fat fella, but they weigh similar. I've had the canon 100-300L in the past, it cant compare to either frankly.

both are big lenses

70-300g = 861g/1lb 14oz
100-300 + adapter = 1000g/2lb 3oz

you pick them up one by one, both are heavy lenses, the differences harder to tell weight wise. With the contax being so skinny and long, it's easier to bring in and out of my bags, but at the same time, absolute limit in length. Was afraid it might be too long (I should have checked last time I bought one :twisted: ).

will probably do some shots on friday. Contax looking very favorable at this point, was viewing my test chart for good measure, and it's good, very high sharpness wide open (maybe oof for testing?). Hopefully I can get out this weekend to evaluate more carefully.


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vinmunoz
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Post edited over 2 years ago by vinmunoz.
     
Mar 14, 2017 16:57 |  #31223

I don't have a long lens, but I have long legged models. lol


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Mar 14, 2017 18:28 |  #31224

vinmunoz wrote in post #18301039 (external link)
I don't have a long lens, but I have long legged models. lol
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Phew, shes a beauty! Nice work lately vinz!


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Mar 14, 2017 18:29 |  #31225

And a very tolerant and understanding wife....


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Mar 14, 2017 19:12 |  #31226

TRhoads wrote in post #18301108 (external link)
And a very tolerant and understanding wife....

LOL.. true


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Mar 14, 2017 19:52 |  #31227

Hahah showed this to my wife, she just smiled. Yap, she's been so supportive except for the 70-200GM haha


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Mar 14, 2017 19:52 |  #31228

davidfarina wrote in post #18301107 (external link)
Phew, shes a beauty! Nice work lately vinz!

Thank you David.


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Mar 14, 2017 20:57 |  #31229

vinmunoz wrote in post #18301180 (external link)
Hahah showed this to my wife, she just smiled. Yap, she's been so supportive except for the 70-200GM haha

LOL...would be the exact opposite in my house...70-200 would be fine...half nekkid ladies...nope...


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Mar 14, 2017 21:04 |  #31230

TRhoads wrote in post #18301230 (external link)
LOL...would be the exact opposite in my house...70-200 would be fine...half nekkid ladies...nope...

Sounds like my house. My wife has a "no models" policy in place. Meanwhile, she's always wondering what lens "we" should buy next. I can't complain.


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