golfbum301 wrote:
It was recommended that a 75-300mm lens might be more effective that a 55-250mm lens and would give double the Magnification. I can buy a used lens on an apparent safe website for $149.00 in excellent condition. I need some opinions.
Thanks
MikeC
Hi MikeC,
Are you talking about Canon lenses?
If so, STICK WITH THE 55-250mm!
Canon's EF 75-300mm "III" sucks! It has terrible image quality at the 300mm end of the range, uses slow/noise micro motor auto focus drive and lacks Image Stablization.
The Canon EF-S 55-250mm IS STM lens is better in all respects. It has faster/quieter "stepper motor" focus drive, effective IS and has much better image quality.
$149 for the EF 75-300mm III isn't a very good deal, either. It's Canon's cheapest telephoto zoom and although it lists for $199, it can often be found for around $100.
There is a version of the EF 75-300mm III with better USM focus drive.... Sells for a little more (around $150-175 typically) but it still lacks IS and has the same optical formula and image quality issues as the cheaper version.
See for yourself... these magnified test shots compare the 75-300mm at 300mm with the 55-250mm at 250mm:
https://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=776&Camera=963&Sample=0&FLI=4&API=1&LensComp=856&CameraComp=963&SampleComp=0&FLIComp=5&APIComp=0Use the little arrow to "switch" back and forth between the samples from those two lenses. You also can change the focal length and aperture settings there... though I think the most dramatic difference is at each lenses' longest focal length.
And a 300mm lens DEFINITELY won't "double the magnification". It's 50mm longer focal length, or about a 20% increase. Also, the 55-250mm STM is closer focusing... to under 3 feet and giving 0.29X max magnification. The 75-300mm's closest focus is just under 5 feet for a max magnification of 0.25X. So, whoever told you that you'd get "double the magnification" is full of it.
If you are looking for an upgrade, a much better bet is Canon EF
70-300mm IS USM, either the current "II" or the previous version. You won't see much difference in image quality, compared to the EF-S 55-250mm... they all have similar IS, too. However, with the 70-300mm IS USM you'll have a bit longer telephoto reach (300mm vs 250mm) and somewhat faster ultrasonic focus drive. Both versions of this lens also have focus scales, which your 55-250mm lacks. In fact, the "II" has an LCD scale readout that can be programmed to show other info, which is kind of neat. And the "II" uses the latest and greatest "Nano USM" focus drive Canon has put in a few lenses. That both fast AND nearly silent (like STM).
These two lenses do cost more, though. Where your EF-S 550-250mm IS STM typically sells for $299, the older EF 70-300mm IS USM (still avail. new) sells for $377. And the latest and greatest EF 70-300mm IS USM "II" is currently on sale for $499 ($50 discount).
Canon also previously offered an EF 70-300mm IS USM "DO" which used "diffractive optics" to be more compact than the other lenses with similar focal length. It was very pricey when new, but is now discontinued and used prices have dropped dramatically. A friend used one and she got very good shots with it.
Canon also offers a "premium" EF 70-300mm IS USM "L"-series lens that's more pro-quality build for durability, better sealed for dust resistance.... AND, perhaps most importantly, can optionally be fitted with a tripod mounting ring. Image quality, focus speed and image stabilization aren't substantially different from the two non-L versions.... the build, sealing and tripod ring are the main things that set this lens apart. It costs $1350 plus another $165 for the tripod mounting ring.
By the time you are spending that much, might as well go to the Canon EF 100-400mm IS USM.... either the original "push/pull" zoom version that's often available for around $1000 used, or the EF 100-400mm IS USM "II" that sells for just over $2000. Both are excellent in most respects. The "II" has especially good image quality and better build/sealing. It also has better image stabilization and works better with teleconverters. Both these lenses use a fluorite element which makes them exceptionally sharp and helps counteract chromatic aberration, which can be an issue with telephoto lenses. None of the other lenses above use fluorite.
Sigma and Tamron have both recently introduced 100-400mm lenses, too. They each cost around $800. Between them, I'd go with the Tamron because it can optionally be fitted with a tripod ring (sold separately, $129) and that's something I consider essential on a lens that reaches 400mm. There's no option for or even means of fitting a tripod ring to the Sigma lens. Both these lenses are also 2/3 stop or more slower than the Canon lenses... for example, the Canon "II" is an f/5 lens to about 310mm, then drops to f/5.6 for the remain focal lengths to 400mm. The Tamron is f/5 only through 180mm, then f/5.6 only through 280mm and f/6.3 the rest of the way. The Sigma is even worse... f/5 only to 111mm! f/5.6 only to 233mm and f/6.2 the rest of it's focal length range. Finally, the Canon 100-400 "II" is also quite close focusing just over 3 feet for 0.31X max magnification... The Tamron gets to just under 5 feet for 0.28X, while the Sigma can focus to 5.25 feet at best for 0.26X.