Reviews and Problems with Sigma MACRO 105mm F2.8 EX DG
Showing 1-10 of 12
Average for the price. 2.8 ONLY at 28mm. Soft w/Cool Colors
3 October 2011
Summary: I haven't gotten this lens upgraded by Sigma yet but I hope they will do it. On Canon digitals this lens may not let you step down the aperture unless the firmware is refreshed. In terms of performance, the lens only does F2.8 at the widest setting.
Summary: The 28-105 is extremely soft wide open (softer than the kit lens). This was supposed to be the new walkaround lens, but with it being so soft, and not that sharp when stopped down, I think it will probably end up being sold sometime in the future.
Summary: This lens is pretty sharp and performs decent. It's focus is quite slow and does not feel like it is made at a high quality level as is experienced with many Sigma lenses. I did notice slight chromatic aberration at wide apertures which can easily be corrected digitally.
Summary: This item was received on March 2nd in good condition. After two weeks of use, however, the autofocus was unable to focus on any object consistently. It would sometimes be able to do so and other times it could not.
Summary: The Sigma 105mm has received praises for many systems, and in some instances these rave remarks are rightly due. The lens is an excellent value with a good build and super sharp optics. However there are many quirks with the lens that often get overlooked.
Summary: I am sure this is an excellent lense - jus be aware that if you use it in AP mode on your nice new D300 etc you will need to set the aperture manually on the lens... It is not full auto like a Nikon AF lens... I was disapointed when I learnt this... Oh well...
Conclusion: I am chalking this one up to a bad copy of this lens. Although I have gotten some good images from this lens, I can't believe how much it errors, especially at macro focal lengths. I have owned it for a month, and its going back today.
Pros: Sorry, can't think of any.
Cons: Error 99 about 50% of the time, manual/auto focus ring takes some getting use to. Center of image tends to be sharp, but edges aren't.
Conclusion: Over a period of time I've come to realize that the most functional macro in terms of practicality & image quality is Nikon's 70-180 ED-AF-D lens. Though not 1:1, it performs with a decent diopter in front. Moreover, provides a sturdy tripod collar !
Pros: Seems decent piece of equipment for its quoted cost ! Surely OK as a macro alternative
Conclusion: This is a good alternative to brand name lenses if you want to shoot macro. However take a look at the Tamron 90/2.8 or the cheaper Sigma 50mm f/2.8 macro as an alternative. The Sigma is well built, but I was not impressed by the optics when compared to my Canon 100/2.8 and specially the Tamron...
Pros: Good construction and manual focus action.
Cons: Optics are not as good as other offerings in this range, AF is slow.
Excerpt: This sigma lens is often a favourite starting point for digital SLR users (single lens reflex) looking to upgrade the 'kit' package they bought on impulse in the January sales. "I know, I've got a million pix of my children and cat, now I'll photograph flowers and insects with a macro lens, whatever...
Pros: value for money (compared to pro level), build quality,
Cons: makes you think your a pro, but by its nature, proves you otherwise .