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SIGMA 150-600mm f/5-6.3 DG DN OS Sport lens review
SIGMA 150-600mm f/5-6.3 DG DN OS Sport lens review How does this third-party lens compare to the native Sony equivalent? We tested both to see whether it’s worth going native or whether you should save your money. A very capable option for newer wildlife photographers looking for an affordable super-telephoto lens without sacrificing too much image quality. -
SIGMA 60-600mm f/4.5-6.3 DG DN OS Sport lens review
SIGMA 60-600mm f/4.5-6.3 DG DN OS Sport lens review Sigma’s 60-600mm Sport lens is one of the most versatile wildlife lenses around, but can its huge zoom range outweigh the heavy design? The Sigma 60-600mm f/4.5-6.3 DG DN Sport lens boasts one of the most versatile focal ranges on the market and effortlessly produces beautiful wildlife shots. The images are sharp, contrasty and true to life, but for us, the weight is a dealbreaker. - + Image quality is lovely - + Versatile focal length - +...
Crystal Palace agree deal in principle for Lens boss Sage
Pierre Sage: Crystal Palace agree deal in principle for RC Lens coach to take over as Oliver Glasner's replacement Andoni Iraola was Crystal Palace's primary target to replace Oliver Glasner before Liverpool moved to appoint him; the Eagles have stepped up interest in Lens coach Pierre Sage and have agreed a deal in principle; Sage is set to sign a three-year deal with the option of another year Tuesday 9 June 2026 15:00, UK Crystal Palace have agreed a deal in principle for Pierre Sage to...
Towards Blind Lens Aberration Correction via Large LensLib Pre-training and Discrete Degradation Priors
arXiv:2511.17126v4 Announce Type: replace-cross Abstract: Emerging deep-learning-based lens library pre-training (LensLib-PT) pipeline offers a new avenue for blind lens aberration correction by training a universal neural network, demonstrating strong capability in handling diverse unknown optical degradations. This work proposes FoundCAC, a universal foundational framework that resolves two challenges hindering the generalization of existing pipelines: the difficulty of scaling training...
Towards Blind Lens Aberration Correction via Large LensLib Pre-training and Discrete Degradation Priors
arXiv:2511.17126v4 Announce Type: replace-cross Abstract: Emerging deep-learning-based lens library pre-training (LensLib-PT) pipeline offers a new avenue for blind lens aberration correction by training a universal neural network, demonstrating strong capability in handling diverse unknown optical degradations. This work proposes FoundCAC, a universal foundational framework that resolves two challenges hindering the generalization of existing pipelines: the difficulty of scaling training...
Crystal Palace switch focus from Iraola and Lampard to Lens manager Pierre Sage
Frenchman first choice now Iraola is in Liverpool talksPalace put off by compensation fee for Frank LampardCrystal Palace are in talks with Pierre Sage with a view to making him their head coach after he led Lens to second in Ligue 1 this season. Andoni Iraola was the preferred option to replace Oliver Glasner but the former Bournemouth manager is in discussions with Liverpool over succeeding Arne Slot. Sage inherited a Lens side last June who had finished eighth and made them title...
Crystal Palace in talks with Lens manager Pierre Sage
Frenchman first choice now Iraola is in Liverpool discussionsPalace put off by compensation fee for Frank LampardCrystal Palace are in talks with Pierre Sage with a view to making him their head coach after he led Lens to second in Ligue 1 this season. Andoni Iraola was the preferred option to replace Oliver Glasner but the former Bournemouth manager is in discussions with Liverpool over succeeding Arne Slot. Sage inherited a Lens side last June who had finished eighth and made them title...
The intracies of modern camera lens repair (2024)
Sigma 45mm f/2.8 Lens Repair & Analysis [05.12.24] I have a camera gear collection problem and as part of my personal 12 step plan, I restrict myself from purchasing functioning lenses. This sounds illogical, and it frankly is, but it's very hard for me to resist heavily discounted lenses.
Revisiting Zeroth-Order Hessian Approximation: A Single-Step Policy Optimization Lens
Announce Type: new Abstract: Accurate Zeroth-Order (ZO) Hessian estimation is a cornerstone of derivative-free methods, essential for tasks such as bilevel optimization, Bayesian inference, and uncertainty quantification. However, obtaining a complete suite of low-variance estimators for the Hessian and its inverse in high-dimensional settings remains a significant challenge. To address this, we propose a unified framework that reinterprets ZO Hessian approximation through the lens of...
Palace set to hold talks with Lens boss Sage
Lens manager Pierre Sage is set to hold talks with Crystal Palace as the Premier League club look to appoint Oliver Glasner's replacement.