Gravitational lensing by a spinning deflector in translational motion relative to the observer is discussed in the weak field, slow motion approximation. The effect of rotation, which generates an intrinsic gravito-magnetic field, separates from th...
The environments of deflectors in strong lensing systems affect our ability to test cosmological models and constrain evolutionary properties of galaxies. Here we measure the deflector scale (Einstein mass) and deflector environment (halo mass) of 89...
We mathematically construct focal lenses for positive-mass particles in Minkowski space. Particles emanating from a point source, refocus with synchronized proper time regardless of initial direction and velocity. Minkowski space offers a useful repr...
We study the invariant of knots in lens spaces defined from quantum Chern-Simons theory. By means of the knot operator formalism, we derive a generalization of the Rosso-Jones formula for torus knots in L(p,1). In the second part of the paper, we pro...
We model massive compact objects in galactic nuclei as stationary, axially-symmetric naked singularities in the Einstein-massless scalar field theory and study the resulting gravitational lensing. In the weak deflection limit we study analytically...
With the rapidly increasing rate of microlensing planet detections, microlensing modeling software faces significant challenges in computation efficiency. Here, we develop the Twinkle code, an efficient and robust binary-lens modeling software suite...
Bayesian model selection methods provide a self-consistent probabilistic framework to test the validity of competing scenarios given a set of data. We present a case study application to strong gravitational lens parametric models. Our goal is to sel...
Dec 26, 2016 · I can see some value in adding the Peau lens but I'm wondering since a lot of my jobs will be in residential developments where the homes are pretty close together if being zoomed (for …
Dec 26, 2017 · Just got to test the Peau 3.97 lens Jimmy Oliver with ShadowQuad installed in the CGO3+ on one of my H480's. Used a Yuneec dark UV even though it was overcast. This is a first …
Optical metasurfaces of subwavelength pillars have provided new capabilities for the versatile definition of the amplitude, phase, and polarization of light. In this work, we demonstrate that an efficient dielectric metasurface lens can be used to tr...
Hey there! New to Sony and I wanted to ask what others are using as their "every day" lens. I primarily shoot pictures of the cities I visit and family get togethers. I don't have a budget either. I ...
Mar 2, 2016 · Said mini zoom as stated in my post and their description copied below: With it being over 40 degrees narrower than the stock GoPro lens, 8 degrees narrower than the DJI Inspire X3 and …
We calculate the Witte-Reshetikhi-Turaev invariant for a knot in the lens space of type L(m,1) for the N-th root of unity, and study its asymptotic behavior for large N....
We express explicitly the analytic torsion functions associated with the Rumin complex on lens spaces in terms of the Hurwitz zeta function. In particular, we find that the functions vanish at the origin and determine the analytic torsions. Moreover,...
Weak gravitational lensing has the potential to select clusters independently of their baryon content, dynamical state, and star formation history. We present steps toward the first shear-selected sample of clusters, from the Deep Lens Survey (DLS)...
Aug 26, 2025 · SMC Pentax-FA 100mm F2.8 Macro lens reviews and specifications. The SMC Pentax-FA 100mm F2.8 Macro is a high-quality macro lens designed to be well above the SMC Pentax-FA …
Nov 17, 2023 · Sigma DC Macro 17-70mm F2.8-4.5 reviews and specifications. The Sigma 17-70 mm f/2.8 4.5 DC Macro is a versatile standard zoom lens designed for APS-C DSLRs, introduced in …
Nov 15, 2023 · Kiron / Lester A. Dine Macro 105mm F2.8 reviews and specifications. The lens is made in Japan by a company called "Kino Precision" aka Kiron. I know of the following versions (they are all …
In weak lensing investigations, galaxy shapes are deconvolved for the effects of the point spread function (PSF) using stellar images. In this paper we use physical models of the telescope optics to understand the spatial variation of the PSF in th...
Sensitive Eyes saline solution helps remove loosened debris and traces of daily cleaner when used as a rinse after cleaning Can also be used to rinse lens cases and as a final (pre-inserting) lens rinse after …
Bausch + Lomb offers a complete line of contact lens care products designed to make your lens wearing experience healthy and comfortable. Explore the categories to learn more.
Explore our products including contact lenses, contact and saline solution, eye drops, vitamins, eyeglasses repair and cleaning kits and treatments for eye conditions.
Oct 10, 2023 · A student has the high dry lens in position and appears to be intently observing the specimen The instructor noting a working distance of 1 cm knows the student isn't seeing the …
The Probing Lensing Anomalies NETwork (PLANET) is a worldwide collaboration of astronomers using semi-dedicated European, South African, and Australian telescopes to perform continuous, rapid and precise multi-band CCD photometric monitoring of on-...
Apr 23, 2010 · Selling Brand New Canon 7D with 5 Lenses and Tons of Extras. I am selling this item as I recently received it as a pre-graduation gift from my aunt and I wont have time to make use of it as I …
We introduce two kurt-spectra to probe fourth-order statistics of weak lensing convergence maps. Using state-of-the-art numerical simulations, we study the shapes of these kurt-spectra as a function of source redshifts and smoothing angular scales. W...
Enables you to configure and manage supported HP Poly audio and video devices. You can also use Poly Lens Web App to enhance your work environment and set health and wellness reminders.
This app allows you to connect your conference room Mini-PC and any connected Poly USB device to the Poly Lens cloud for a remote inventory view, device monitoring and device management.
Administrators can utilize HP Poly Studio Desktop to deploy and manage these devices at scale through Poly Lens cloud policy while driving increased visibility through insights and reporting.
Jan 5, 2026 · Poly Lens Desktop is now known as the HP Poly Studio Desktop App, or Poly Studio Desktop for short. With this rebrand, we have also updated our app’s look and feel, and further …
This paper presents a study on performance optimization and resonant frequency modification of terahertz detectors by the use of hyper-hemispherical silicon superstrate lenses. The detectors are patch-TeraFETs, i.e., field-effect transistors with mon...